Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "name": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        0,
        400
      ],
      "webhookId": "ad8a87ef-d293-4e48-8d36-838d69ebce0f",
      "parameters": {
        "formId": "fBYjtY5e"
      },
      "credentials": {
        "typeformApi": ""
      },
      "typeVersion": 1,
      "id": "9b6cfb94-3333-4fc1-96f9-a3f1df04d18e",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Google Cloud Natural Language",
      "type": "n8n-nodes-base.googleCloudNaturalLanguage",
      "position": [
        200,
        400
      ],
      "parameters": {
        "content": "={{$json[\"Any suggestions for us? \"]}}",
        "options": {}
      },
      "credentials": {
        "googleCloudNaturalLanguageOAuth2Api": ""
      },
      "typeVersion": 1,
      "id": "1ffc1443-4150-41ab-8b90-d83cc81698bb",
      "notes": "This googleCloudNaturalLanguage node performs automated tasks as part of the workflow."
    },
    {
      "name": "If Node",
      "type": "n8n-nodes-base.if",
      "position": [
        400,
        400
      ],
      "parameters": {
        "conditions": {
          "number": [
            {
              "value1": "={{$node[\"Google Cloud Natural Language\"].json[\"documentSentiment\"][\"score\"]}}",
              "operation": "larger"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "7306a3bb-551a-4142-91f5-1c533ca16dcf",
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "name": "Notion",
      "type": "n8n-nodes-base.notion",
      "position": [
        600,
        300
      ],
      "parameters": {
        "resource": "databasePage",
        "databaseId": "b7d1130a-3756-4bb3-aa56-0c77bf416437",
        "propertiesUi": {
          "propertyValues": [
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "title": "=...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "name": "Get Start & End of day",
      "type": "n8n-nodes-base.function",
      "position": [
        850,
        450
      ],
      "parameters": {
        "functionCode": "var curr = new Date;\nvar first = (curr.getDate());\nvar last = first;\n\nvar firstday = new Date(curr.setDate(first));\nvar lastday = new Date(curr.setDate(last));\n\nbeginning = new Date(firstday.setHours(0,0,0,0));\nending = new Date(lastday.setHours(23,59,59,99));\n\nitems[0].json.from = beginning.toISOString();\nitems[0].json.to = ending.toISOString();\n\nreturn items;items[0].json.myVariable = 1;\nreturn items;"
      },
      "typeVersion": 1,
      "id": "1b9e77d2-2c9f-43d0-ad85-4c47ba802575",
      "notes": "This function node performs automated tasks as part of the workflow."
    },
    {
      "name": "Set Trello Card Details",
      "type": "n8n-nodes-base.set",
      "position": [
        1460,
        640
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "name",
              "value": "={{$node[\"Split Events In Batches\"].json[\"summary\"]}}"
            },
            {
              "name": "description",
              "value": "={{$node[\"Split Events In Batches\"].json[\"description\"]}}"
            },
            {
              "name": "duedate",
              "value": "={{$node[\"Split Events In Batches\"].json[\"start\"][\"dateTime\"]}}"
            },
            {
              "name": "URL",
              "value": "={{$node[\"Split Events In Batches\"].json[\"htmlLink\"]}}"
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 1,
      "id": "3f9284e0-fbc5-4967-ac34-5b4192c6d2d3",
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "name": "Remove Recurring Tasks",
      "type": "n8n-nodes-base.if",
      "position": [
        1650,
        640
      ],
      "parameters": {
        "conditions": {
  ...

Output:
The node 'Create Trello Cards' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Create Trello Cards'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "117",
  "name": "Receive updates for changes in the specified list in Trello",
  "nodes": [
    {
      "name": "Trello Trigger",
      "type": "n8n-nodes-base.trelloTrigger",
      "position": [
        700,
        250
      ],
      "parameters": {
        "id": ""
      },
      "credentials": {
        "trelloApi": ""
      },
      "typeVersion": 1,
      "id": "8b1fb8fe-47b8-44de-988c-41db812f7aa3",
      "notes": "This trelloTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-0fc89f16",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    },
    {
      "parameters": {
        "url": "https://api.example.com/data",
        "method": "GET",
        "options": {}
      },
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        450,
        300
      ]
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "connections": {},
  "description": "Automated workflow: Receive updates for changes in the specified list in Trello. This workflow processes data and performs automated tasks.",
  "meta": {
    "instanceId": "workflow-8660f1db",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.155852",
    "updatedAt": "2025-09-29T07:07:58.155942",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excelle...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.

Add rate limiting protection with Wait nodes and retry logic.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "name": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        0,
        400
      ],
      "webhookId": "ad8a87ef-d293-4e48-8d36-838d69ebce0f",
      "parameters": {
        "formId": "fBYjtY5e"
      },
      "credentials": {
        "typeformApi": ""
      },
      "typeVersion": 1,
      "id": "6e864f69-ccaa-49fd-9680-2d3f48a7332d",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Google Cloud Natural Language",
      "type": "n8n-nodes-base.googleCloudNaturalLanguage",
      "position": [
        200,
        400
      ],
      "parameters": {
        "content": "={{$json[\"Any suggestions for us? \"]}}",
        "options": {}
      },
      "credentials": {
        "googleCloudNaturalLanguageOAuth2Api": ""
      },
      "typeVersion": 1,
      "id": "13910388-4ae2-4c39-9dde-d3084e4dd5bb",
      "notes": "This googleCloudNaturalLanguage node performs automated tasks as part of the workflow."
    },
    {
      "name": "If Node",
      "type": "n8n-nodes-base.if",
      "position": [
        400,
        400
      ],
      "parameters": {
        "conditions": {
          "number": [
            {
              "value1": "={{$node[\"Google Cloud Natural Language\"].json[\"documentSentiment\"][\"score\"]}}",
              "operation": "larger"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "7d2d7720-7a91-421b-9eb7-a4c16d03bcf0",
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "name": "Notion",
      "type": "n8n-nodes-base.notion",
      "position": [
        600,
        300
      ],
      "parameters": {
        "resource": "databasePage",
        "databaseId": "b7d1130a-3756-4bb3-aa56-0c77bf416437",
        "propertiesUi": {
          "propertyValues": [
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "title": "=...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.

Add validation for empty or null input data.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": 1,
  "name": "Send Typeforms leads via Whatsapp (Twilio)",
  "nodes": [
    {
      "name": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        460,
        300
      ],
      "webhookId": "a3c4dab3-6550-4e82-906f-db7f73ab35a5",
      "parameters": {
        "formId": "agRe2poK",
        "onlyAnswers": false,
        "authentication": "{{ $credentials.oAuth2 }}"
      },
      "credentials": {
        "typeformOAuth2Api": {
          "id": "{{ $credentials.typeformOAuth2Api.id }}",
          "name": "Typeform account"
        }
      },
      "retryOnFail": true,
      "typeVersion": 1,
      "id": "3daf9f65-1072-4ad9-86bb-8e3294612f78",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Twilio",
      "type": "n8n-nodes-base.twilio",
      "position": [
        900,
        300
      ],
      "parameters": {
        "to": "+33659104857",
        "from": "+16065954936",
        "message": "={{ $env.UNDEFINED_ENV_VAR }}"
      },
      "credentials": {
        "twilioApi": {
          "id": "{{ $credentials.twilioApi.id }}",
          "name": "Twilio account"
        }
      },
      "retryOnFail": true,
      "typeVersion": 1,
      "id": "82d0cfff-fff1-4a1f-a6b8-0c7d5fb91b46",
      "notes": "This twilio node performs automated tasks as part of the workflow."
    },
    {
      "name": "Set",
      "type": "n8n-nodes-base.set",
      "position": [
        680,
        300
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "Data",
              "value": "=Last name : {{$node[\"Typeform Trigger\"].json[\"form_response\"][\"answers\"][\"And your *last name*?\"]}}\nFirst name :{{$node[\"Typeform Trigger\"].json[\"form_response\"][\"answers\"][\"Let's start with your* first name.*\"]}}\nNumber of child : {{$node[\"Typeform Trigger\"].json[\"form_response\"][\"answers\"][\"How many child do y...

Output:
In node 'Twilio', the parameter 'message' contains an expression that references undefined data.

**Faulty Expression**: `={{ $env.UNDEFINED_ENV_VAR }}`
**Original Value**: `=Hello, Here is a new customer who is looking for a Test :

{{$json["Data"]}}

Regards, HelloSafe`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Twilio' parameter 'message'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-93579962",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.196172",
    "updatedAt": "2025-09-29T07:07:58.196187",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "c2429079-50b7-4da8-9fe4-9a1879bd681c",
      "name": "Twilio Trigger",
      "type": "n8n-nodes-base.twilioTrigger",
      "position": [
        -380,
        -460
      ],
      "webhookId": "47604448-e049-480d-899e-d3318a93276b",
      "parameters": {
        "updates": [
          "com.twilio.messaging.inbound-message.received"
        ]
      },
      "credentials": {
        "twilioApi": {
          "id": "TJv4H4lXxPCLZT50",
          "name": "Twilio account"
        }
      },
      "typeVersion": 1,
      "notes": "This twilioTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "b1c0dc4c-593f-49aa-8fec-a77c7e40928e",
      "name": "Search Available Courses",
      "type": "n8n-nodes-base.airtableTool",
      "position": [
        380,
        -80
      ],
      "parameters": {
        "base": {
          "__rl": true,
          "mode": "list",
          "value": "appO5xvP1aUBYKyJ7",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Northvale Institute of Technology Courses 2025-2026"
        },
        "limit": 5,
        "table": {
          "__rl": true,
          "mode": "list",
          "value": "tblRfh0t0KNSJYJVw",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Imported table"
        },
        "options": {},
        "operation": "search",
        "returnAll": false,
        "descriptionType": "manual",
        "filterByFormula": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Filter_By_Formula', ``, 'string') }}",
        "toolDescription": "Call this tool to access the course ...

Output:
The workflow has a broken data flow. The node 'f1991f1f-9666-43d9-88ce-a2c083491a78' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'f1991f1f-9666-43d9-88ce-a2c083491a78'.

**Impact**: Data from 'f1991f1f-9666-43d9-88ce-a2c083491a78' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'f1991f1f-9666-43d9-88ce-a2c083491a78' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "f1991f1f-9666-43d9-88ce-a2c083491a78": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'f1991f1f-9666-43d9-88ce-a2c083491a78' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "92",
  "name": "Send an SMS to a number whenever you go out",
  "nodes": [
    {
      "name": "Pushcut Trigger",
      "type": "n8n-nodes-base.pushcutTrigger",
      "position": [
        470,
        300
      ],
      "webhookId": "",
      "parameters": {
        "actionName": "Leaving Home"
      },
      "typeVersion": 1,
      "id": "78bd513c-df25-4103-944d-834d01bdb676",
      "notes": "This pushcutTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Twilio",
      "type": "n8n-nodes-base.twilio",
      "position": [
        670,
        300
      ],
      "parameters": {
        "to": "123",
        "from": "123",
        "message": "=I'm {{$node[\"Pushcut Trigger\"].json[\"input\"]}}"
      },
      "credentials": {
        "twilioApi": "twilio"
      },
      "typeVersion": 1,
      "id": "9a145505-c0b0-4a5a-8c9d-0c36e94fdb20",
      "notes": "This twilio node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-e0de112a",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "connections": {},
  "description": "Automated workflow: Send an SMS to a number whenever you go out. This workflow processes data and performs automated tasks.",
  "meta": {
    "instanceId": "workflow-bebcde6f",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.193753",
    "updatedAt": "2025-09-29T07:07:58.193770",
    "owner": "n8n-user",
    "license": "MIT",
...

Output:
The node 'Pushcut Trigger' (type: n8n-nodes-base.pushcutTrigger) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "pushcutApi": "Pushcut Credentials"
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Pushcut Trigger' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": 85,
  "name": "New WooCommerce Product to Twitter and Telegram",
  "nodes": [
    {
      "name": "Twitter",
      "type": "n8n-nodes-base.twitter",
      "position": [
        720,
        300
      ],
      "parameters": {
        "text": "={{ $env.UNDEFINED_ENV_VAR }}",
        "additionalFields": {}
      },
      "credentials": {
        "twitterOAuth1Api": {
          "id": "{{ $credentials.twitterOAuth1Api.id }}",
          "name": "joffcom"
        }
      },
      "typeVersion": 1,
      "id": "1e3d79e1-b86a-46db-9b9f-ffcd06ac0f3d",
      "notes": "This twitter node performs automated tasks as part of the workflow."
    },
    {
      "name": "Telegram",
      "type": "n8n-nodes-base.telegram",
      "position": [
        720,
        500
      ],
      "parameters": {
        "text": "=\u2728 New Product Announcement \u2728\nWe have just added {{$json[\"name\"]}}, Head to {{$json[\"permalink\"]}} to find out more.",
        "chatId": "123456",
        "additionalFields": {}
      },
      "credentials": {
        "telegramApi": {
          "id": "{{ $credentials.telegramApi.id }}",
          "name": "Telegram account"
        }
      },
      "typeVersion": 1,
      "id": "c9ee73e1-c267-4f3c-a590-385d4db26341",
      "notes": "This telegram node performs automated tasks as part of the workflow."
    },
    {
      "name": "WooCommerce Trigger",
      "type": "n8n-nodes-base.wooCommerceTrigger",
      "position": [
        540,
        400
      ],
      "webhookId": "ab7b134b-9b2d-4e0d-b496-1aee30db0808",
      "parameters": {
        "event": "product.created"
      },
      "credentials": {
        "wooCommerceApi": {
          "id": "{{ $credentials.wooCommerceApi.id }}",
          "name": "WooCommerce account"
        }
      },
      "typeVersion": 1,
      "id": "49cb5781-ba4c-455c-99d5-26aeac54480c",
      "notes": "This wooCommerceTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-64dc9762",
  ...

Output:
In node 'Twitter', the parameter 'text' contains an expression that references undefined data.

**Faulty Expression**: `={{ $env.UNDEFINED_ENV_VAR }}`
**Original Value**: `=✨ New Product Announcement ✨
We have just added {{$json["name"]}}, Head to {{$json["permalink"]}} to find out more.`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Twitter' parameter 'text'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": 95,
  "name": "Scrape Twitter for mentions of company",
  "nodes": [
    {
      "name": "Filter Tweet Data",
      "type": "n8n-nodes-base.set",
      "position": [
        1260,
        300
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "Tweet",
              "value": "={{$node[\"Get last 50 mentions\"].json[\"text\"]}}"
            },
            {
              "name": "Tweet URL",
              "value": "={{ $env.WEBHOOK_URL }}{{$node[\"Get last 50 mentions\"].json[\"user\"][\"screen_name\"]}}/status/{{$node[\"Get last 50 mentions\"].json[\"id_str\"]}}"
            }
          ]
        },
        "options": {},
        "keepOnlySet": true
      },
      "typeVersion": 1,
      "id": "600d8d84-ac22-4afd-9d1b-7ccff17f8a34",
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "name": "Run Every 10 Minutes",
      "type": "n8n-nodes-base.cron",
      "position": [
        260,
        320
      ],
      "parameters": {
        "triggerTimes": {
          "item": [
            {
              "mode": "everyX",
              "unit": "minutes",
              "value": 10
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "d3bb9d53-d66c-4191-8423-0ce3b29b0f7a",
      "notes": "This cron node performs automated tasks as part of the workflow."
    },
    {
      "name": "Now - 10 minutes",
      "type": "n8n-nodes-base.dateTime",
      "position": [
        620,
        320
      ],
      "parameters": {
        "value": "={{Date()}}",
        "action": "calculate",
        "options": {},
        "duration": "={{$node[\"Run Every 10 Minutes\"].parameter[\"triggerTimes\"][\"item\"][0][\"value\"]}}",
        "timeUnit": "={{$node[\"Run Every 10 Minutes\"].parameter[\"triggerTimes\"][\"item\"][0][\"unit\"]}}",
        "operation": "subtract"
      },
      "typeVersion": 1,
      "id": "eb067db9-dba8-4905-809a-89b4e8434846",
 ...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "WCh8N9PrO0UIwrqW",
  "meta": {
    "instanceId": "workflow-b607f7f9",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.200829",
    "updatedAt": "2025-09-29T07:07:58.200869",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Automatizacion X",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "trigger-c5be14ff",
      "name": "Manual Trigger",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {}
    },
    {
      "id": "a51d67d2-ef4a-47c3-8206-51f2c1067128",
      "name": "When chat message received",
      "type": "n8n-nodes-base.noOp",
      "position": [
        0,
        0
      ],
      "webhookId": "614cd783-fbc8-44ca-8db8-820679333e75",
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.1,
      "notes": "This chatTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "702d2f29-c9cb-46aa-bdc2-ccd68ab24a1c",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        200,
        240
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o",
          "cachedResultName": "gpt-4o"
        },
        "options": {}
      },
      "typeVersion": 1.2,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "6d65d809-e2b3-4884-ad1a-7738ac9ebbb7",
      "name": "Simple Memory",
      "type": "n8n-nodes-base.noOp",
      "position": [
        400,
        240
      ],
      "parameters": {},
      "typeVersion": 1.3,
      "notes": "This memoryBufferWindow node performs automated tasks as part of the workflow."
    },
   ...

Output:
The node 'hilo' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "16",
  "name": "User Request Management",
  "nodes": [
    {
      "name": "ClickUp",
      "type": "n8n-nodes-base.clickUp",
      "position": [
        1180,
        490
      ],
      "parameters": {
        "list": "={{$json[\"ListID\"]}}",
        "name": "={{$node[\"Typeform Trigger\"].json[\"Give this request a short title.\"]}}",
        "team": "8583125",
        "space": "12732821",
        "folder": "25402375",
        "authentication": "{{ $credentials.oAuth2 }}",
        "additionalFields": {
          "content": "={{$node[\"Typeform Trigger\"].json[\"Describe in detail what you would like to see happen for this request.\"]}}\n\nRequested by:\n{{$node[\"Typeform Trigger\"].json[\"Your full name\"]}}\n{{$node[\"Typeform Trigger\"].json[\"Your email address\"]}}",
          "priority": "={{$json[\"How urgent is this request?\"]}}"
        }
      },
      "typeVersion": 1,
      "id": "f74ec5a3-c00c-4836-9c12-bde08ad7e52d",
      "notes": "This clickUp node performs automated tasks as part of the workflow."
    },
    {
      "name": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        530,
        500
      ],
      "webhookId": "80816cb6-d987-44b2-8981-f95d1af1f6a8",
      "parameters": {
        "formId": "LE36uLN1"
      },
      "credentials": {
        "typeformApi": "Typeform"
      },
      "typeVersion": 1,
      "id": "da9dc6ff-c9dd-4434-bf0e-b01c3a34e445",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "ListID 54684957",
      "type": "n8n-nodes-base.set",
      "position": [
        940,
        560
      ],
      "parameters": {
        "values": {
          "number": [
            {
              "name": "ListID",
              "value": 54684957
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 1,
      "id": "89bfee0b-8016-419a-91c7-076a7a88bf73",
      "notes": "This set node ...

Output:
The node 'ClickUp' (type: n8n-nodes-base.clickUp) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "clickUpOAuth2Api": "ClickUp Cred"
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'ClickUp' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id" "54",
  "name": "CFP Selection 1",
  "nodes": [
    {
      "name": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        450,
        250
      ],
      "parameters": {
        "formId": ""
      },
      "credentials": {
        "typeformApi": "Typeform"
      },
      "typeVersion": 1,
      "id": "62351e1a-afc0-41c6-94a1-e1688d77e310",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Airtable",
      "type": "n8n-nodes-base.airtable",
      "position": [
        660,
        250
      ],
      "parameters": {
        "table": "",
        "operation": "append",
        "application": ""
      },
      "credentials": {
        "airtableApi": "Airtable"
      },
      "typeVersion": 1,
      "id": "1a637f37-b513-4eb0-a389-8624f315fe3a",
      "notes": "This airtable node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-1f83707b",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "connections": {},
  "description": "Automated workflow: CFP Selection 1. This workflow processes data and performs automated tasks.",
  "meta": {
    "instanceId": "workflow-30ed9c73",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.212105",
    "updatedAt": "2025-09-29T07:07:58.212114",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
  ...

Output: The JSON is missing a colon between a key and its value. JSON requires colons to separate keys from values.

Add the missing colon after the property name.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "name": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        510,
        260
      ],
      "webhookId": "1cbca674-78fb-402e-b225-2aa6f92b5338",
      "parameters": {
        "formId": ""
      },
      "credentials": {
        "typeformApi": "Typeform Burner Account"
      },
      "typeVersion": 1,
      "id": "1223881e-7eaf-4616-9ff4-8b5c7fe6ad41",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Demio",
      "type": "n8n-nodes-base.demio",
      "position": [
        710,
        260
      ],
      "parameters": {
        "email": "={{$json[\"What's your email address?\"]}}",
        "eventId": 357191,
        "firstName": "={{$json[\"Let's start with your name.\"]}}",
        "operation": "register",
        "additionalFields": {},
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "demioApi": "Demio API Credentials"
      },
      "typeVersion": 1,
      "id": "69a9af47-885f-4edd-be13-5aee9b6a5076",
      "notes": "This demio node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-f1230cd0",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "connections": {},
  "name": "Typeformtrigger Workflow",
  "description": "Automated workflow: Typeformtrigger Workflow. This workflow processes data and performs automated tasks.",
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "meta": {
    "in...

Output:
The node 'Demio' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "id": "trigger-4105a878",
      "name": "Manual Trigger",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {}
    },
    {
      "name": "UptimeRobot2",
      "type": "n8n-nodes-base.uptimeRobot",
      "position": [
        890,
        320
      ],
      "parameters": {
        "id": "={{$json[\"id\"]}}",
        "resource": "monitor",
        "operation": "get"
      },
      "credentials": {
        "uptimeRobotApi": "UptimeRobot API Credentials"
      },
      "typeVersion": 1,
      "id": "d6b62371-b76d-4268-9367-26235ffff50d",
      "notes": "This uptimeRobot node performs automated tasks as part of the workflow."
    },
    {
      "name": "UptimeRobot",
      "type": "n8n-nodes-base.uptimeRobot",
      "position": [
        490,
        320
      ],
      "parameters": {
        "url": "{{ $env.WEBHOOK_URL }}",
        "type": 1,
        "resource": "monitor",
        "operation": "create",
        "friendlyName": "n8n"
      },
      "credentials": {
        "uptimeRobotApi": "UptimeRobot API Credentials"
      },
      "typeVersion": 1,
      "id": "22fa655b-e9f9-4c80-9b3f-8399271ef126",
      "notes": "This uptimeRobot node performs automated tasks as part of the workflow."
    },
    {
      "name": "UptimeRobot1",
      "type": "n8n-nodes-base.uptimeRobot",
      "position": [
        690,
        320
      ],
      "parameters": {
        "id": "={{$json[\"id\"]}}",
        "resource": "monitor",
        "operation": "update",
        "updateFields": {
          "friendly_name": "n8n website"
        },
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "uptimeRobotApi": "UptimeRobot API Credentials"
      },
      "typeVersion": 1,
      "id": "a4182915-aa0c-4d29-a7f7-5accf963ce71",
      "notes": "This uptimeRobot node performs automated tasks as part of the workflow."
    },
    {
      "id"...

Output:
The node 'UptimeRobot1' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'UptimeRobot1'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": 121,
  "name": "Create Email Campaign From LinkedIn Post Interactions",
  "nodes": [
    {
      "name": "Cron",
      "type": "n8n-nodes-base.cron",
      "position": [
        280,
        500
      ],
      "parameters": {
        "triggerTimes": {
          "item": [
            {
              "mode": "everyHour"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "1e50b42d-7431-4329-9be1-9ba3d6cd97f6",
      "notes": "This cron node performs automated tasks as part of the workflow."
    },
    {
      "name": "Exists ?",
      "type": "n8n-nodes-base.if",
      "position": [
        1700,
        480
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{$node[\"Airtable - List\"].json[\"fields\"][\"Email\"]}}",
              "value2": "={{$node[\"Dropcontact - GET\"].json[\"data\"][0][\"email\"][0][\"email\"]}}"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "7352475b-fe80-42b0-b976-8127b63075aa",
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "name": "Airtable - List",
      "type": "n8n-nodes-base.airtable",
      "position": [
        1500,
        480
      ],
      "parameters": {
        "table": "Contacts",
        "operation": "list",
        "additionalOptions": {
          "fields": []
        }
      },
      "credentials": {
        "airtableApi": {
          "id": "",
          "name": ""
        }
      },
      "typeVersion": 1,
      "id": "a20f16a8-ffee-4531-86a3-ad1c1fa42677",
      "notes": "This airtable node performs automated tasks as part of the workflow."
    },
    {
      "name": "Airtable - Update",
      "type": "n8n-nodes-base.airtable",
      "position": [
        2100,
        400
      ],
      "parameters": {
        "id": "={{$node[\"Airtable - List\"].json[\"id\"]}}",
        "table": "Contacts",
        "options": {
          "typecast": ...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.

Configure appropriate timeouts and error handling for HTTP requests.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "121pu6oiTjzkJ8OT",
  "meta": {
    "instanceId": "workflow-7275210c",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.303121",
    "updatedAt": "2025-09-29T07:07:58.303153",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "\u2194\ufe0f Airtable Batch Processing",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "35a541ff-867e-4578-bfff-d955c6cce6c9",
      "name": "upsert",
      "type": "n8n-nodes-base.httpRequest",
      "maxTries": 5,
      "position": [
        760,
        -200
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "method": "PATCH",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        },
        "jsonBody": "={\n  \"performUpsert\": {\n    \"fieldsToMergeOn\": {{ $('Airtable Subprocess').first().json.fieldsToMergeOn.toJsonString() }}\n  },\n  \"records\": {{ $json.records.toJsonString() }}\n}",
        "sendBody": true,
        "specifyBody": "json",
        "authentication": "{{ $credentials.predefinedCredentialType }}",
        "nodeCredentialType": "YOUR_CREDENTIAL_HERE"
      },
      "credentials": {
        "airtableTokenApi": {
          "id": "c3XcXntDvRoTITuL",
          "name": "Airtable s.mayerhofer"
        }
      },
      "retryOnFail": true,
      "typeVersion": 4.2,
      "waitBetweenTries": 5000,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "c422716d-c0c6-4998-ac99-d62a4d298aae",
      "name": "random data",
      "type": "n8n-nodes-base.debugHelper",
      "position": [
        -240,
        -720
      ],
      "parameters": {
        "category": "randomData",
        "randomDataType": "address"
      },
      "typeVers...

Output:
The node 'Airtable Batch' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Airtable Batch'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "name": "Calendly Trigger",
      "type": "n8n-nodes-base.calendlyTrigger",
      "position": [
        -600,
        1700
      ],
      "webhookId": "f3436daa-42cd-4ac9-93ff-750a9cc28165",
      "parameters": {
        "events": [
          "invitee.created"
        ]
      },
      "credentials": {
        "calendlyApi": "calendly_api"
      },
      "typeVersion": 1,
      "id": "7143e25d-552e-4d78-9e85-a5e6b2d713ce",
      "notes": "This calendlyTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Pipedrive",
      "type": "n8n-nodes-base.pipedrive",
      "position": [
        -400,
        1600
      ],
      "parameters": {
        "type": "call",
        "subject": "={{$json[\"payload\"][\"event_type\"][\"name\"]}} with {{$json[\"payload\"][\"invitee\"][\"name\"]}} on {{$json[\"payload\"][\"event\"][\"invitee_start_time\"]}}",
        "resource": "activity",
        "additionalFields": {}
      },
      "credentials": {
        "pipedriveApi": "pipedriveapi"
      },
      "typeVersion": 1,
      "id": "9c0cf5da-b101-4160-b97c-e154269f2d11",
      "notes": "This pipedrive node performs automated tasks as part of the workflow."
    },
    {
      "name": "Date & Time",
      "type": "n8n-nodes-base.dateTime",
      "position": [
        -400,
        1800
      ],
      "parameters": {
        "value": "={{$json[\"payload\"][\"event\"][\"end_time\"]}}",
        "action": "calculate",
        "options": {},
        "duration": 15,
        "timeUnit": "minutes",
        "dataPropertyName": "feedback_time"
      },
      "typeVersion": 1,
      "id": "15be853f-a38a-49b0-91ff-b4adaa678bc4",
      "notes": "This dateTime node performs automated tasks as part of the workflow."
    },
    {
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        0,
        1800
      ],
      "parameters": {
        "text": "={{$json[\"payload\"][\"event\"][\"assigned_to\"][0]}}, toda...

Output: The JSON is invalid because there is a trailing comma before a closing brace. Remove the extra comma.

Remove the trailing comma before the closing brace.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-2ee9cb34",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.257082",
    "updatedAt": "2025-09-29T07:07:58.257141",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "04750e9b-6ce3-401b-89e7-f1f17f3a4a28",
      "name": "When clicking \"Execute Workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -180,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "7a8bb997-5a2d-4ee0-a1ca-bebe9fe32bc2",
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        640,
        460
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {
          "redirect": {
            "redirect": {
              "followRedirects": true
            }
          }
        }
      },
      "typeVersion": 3,
      "continueOnFail": true,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "6409f0c4-bf93-4a1d-a74c-e294fb39895f",
      "name": "HTML Extract",
      "type": "n8n-nodes-base.htmlExtract",
      "position": [
        820,
        460
      ],
      "parameters": {
        "options": {
          "trimValues": false
        },
        "extractionValues": {
          "values": [
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "cssSelector": "html"
            }
          ]
        }
      },
      "typeVersion": 1,
      "continueOnFail": true,
      "notes": "This htmlExtract node performs automated tasks as part of the workflow."
    },
    {
      "id": "f45fcc6a-9ccd-43c9-9eaf-1797768e1e62",
      "name": "OpenAI",
      "type": "n8n-nodes-base.openAi",
      "posit...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-691eca5e",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.409846",
    "updatedAt": "2025-09-29T07:07:58.409863",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "dbb98f7d-6737-4eaa-9a66-9779c042c575",
      "name": "VirusTotal result",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        2430,
        1648
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "authentication": "{{ $credentials.predefinedCredentialType }}",
        "nodeCredentialType": "YOUR_CREDENTIAL_HERE"
      },
      "typeVersion": 4.1,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "fb71337b-ebd3-4331-9f18-ff953c6b068b",
      "name": "DNS Lookup",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1330,
        1028
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "name",
              "value": "={{ $json.url.includes('://') ? $json.url.split('://')[1].split('/')[0] : $json.url }}"
            }
          ]
        }
      },
      "typeVersion": 4.1,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "290c6e9c-31d1-4476-9beb-b72a795ecfbb",
      "name": "Set IP From Lookup",
      "type": "n8n-nodes-base.code",
      "position": [
        1530,
        1028
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "// Get the resolved IP address (last item in the Answer array)\nconst ip = $json.Answer.pop().data;\nconst item = {...$('Is IP?').item.json}\nitem.ip = ip\n\nreturn {json: item};"...

Output:
The workflow has a broken data flow. The node '770b4056-1497-48ed-bcd7-ad6e7106cc7d' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '770b4056-1497-48ed-bcd7-ad6e7106cc7d'.

**Impact**: Data from '770b4056-1497-48ed-bcd7-ad6e7106cc7d' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from '770b4056-1497-48ed-bcd7-ad6e7106cc7d' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "770b4056-1497-48ed-bcd7-ad6e7106cc7d": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '770b4056-1497-48ed-bcd7-ad6e7106cc7d' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "id": "fdb7302d-9319-4861-abab-557a3c1f1493",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2660,
        340
      ],
      "parameters": {
        "color": 7,
        "width": 288.76295784381495,
        "height": 795.272978576365,
        "content": "### Available source and target languages`*`:\n\n`BG` - \ud83c\udde7\ud83c\uddec Bulgarian\n`CS` - \ud83c\udde8\ud83c\uddff Czech\n`DA` - \ud83c\udde9\ud83c\uddf0 Danish\n`DE` - \ud83c\udde9\ud83c\uddea German\n`EL` - \ud83c\uddec\ud83c\uddf7 Greek\n`EN-GB` - \ud83c\uddec\ud83c\udde7 English (British)\n`EN-US` - \ud83c\uddfa\ud83c\uddf8 English (American)\n`ES` - \ud83c\uddea\ud83c\uddf8 Spanish\n`ET` - \ud83c\uddea\ud83c\uddea Estonian\n`FI` - \ud83c\uddeb\ud83c\uddee Finnish\n`FR` - \ud83c\uddeb\ud83c\uddf7 French\n`HU` - \ud83c\udded\ud83c\uddfa Hungarian\n`ID` - \ud83c\uddee\ud83c\udde9 Indonesian\n`IT` - \ud83c\uddee\ud83c\uddf9 Italian\n`JA` - \ud83c\uddef\ud83c\uddf5 Japanese\n`KO` - \ud83c\uddf0\ud83c\uddf7 Korean\n`LT` - \ud83c\uddf1\ud83c\uddf9 Lithuanian\n`LV` - \ud83c\uddf1\ud83c\uddfb Latvian\n`NB` - \ud83c\uddf3\ud83c\uddf4 Norwegian (Bokm\u00e5l)\n`NL` - \ud83c\uddf3\ud83c\uddf1 Dutch\n`PL` - \ud83c\uddf5\ud83c\uddf1 Polish\n`PT-BR` - \ud83c\udde7\ud83c\uddf7 Portuguese (Brazilian)\n`PT-PT` - \ud83c\uddf5\ud83c\uddf9 Portuguese\n`RO` - \ud83c\uddf7\ud83c\uddf4 Romanian\n`RU` - \ud83c\uddf7\ud83c\uddfa Russian\n`SK` - \ud83c\uddf8\ud83c\uddf0 Slovak\n`SL` - \ud83c\uddf8\ud83c\uddee Slovenian\n`SV` - \ud83c\uddf8\ud83c\uddea Swedish\n`TR` - \ud83c\uddf9\ud83c\uddf7 Turkish\n`UK` - \ud83c\uddfa\ud83c\udde6 Ukrainian\n`ZH` - \ud83c\udde8\ud83c\uddf3 Chinese (simplified)\n\n`*` For more up-to-date list, please consult the official DeepL [API documentation]({{ $env.API_BASE_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "9c...

Output: The JSON is invalid because it is missing a closing brace '}' at the end of the file. Add the missing '}' to close the workflow object.

Add a closing brace '}' at the end of the JSON.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-28287b69",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.397525",
    "updatedAt": "2025-09-29T07:07:58.397538",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "5fa5ccd8-81be-45a2-ac00-7ef28148c0c7",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        700,
        460
      ],
      "parameters": {
        "width": 1767.817629414989,
        "height": 470.03830555074103,
        "content": "## DROPCONTACT 250 BATCH ASYNCHRONOUSLY \n## 1500/HOUR REQUESTS\n**Double click** to edit me. [Guide]({{ $env.WEBHOOK_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "9c6826a3-ec94-4ff4-92a6-0ff7fa22349e",
      "name": "Aggregate",
      "type": "n8n-nodes-base.aggregate",
      "position": [
        1000,
        620
      ],
      "parameters": {
        "options": {},
        "fieldsToAggregate": {
          "fieldToAggregate": [
            {
              "fieldToAggregate": "first_name"
            },
            {
              "fieldToAggregate": "last_name"
            },
            {
              "fieldToAggregate": "domain"
            },
            {
              "fieldToAggregate": "phantom_linkedin"
            },
            {
              "fieldToAggregate": "full_name"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This aggregate node performs automated tasks as part of the workflow."
    },
    {
      "id": "c0d5b884-de58-42f3-bc50-0c7e6ca5e576",
      "name": "PROFILES QUERY",
      "type": "n8n-nodes-base.postgres",
      "position": [
        560,
        600
      ],
      "parameters": {
        "query": "select first_name, last_name, domain, full_name\nfrom ...

Output:
In node 'Split Out', the parameter 'fieldToSplitOut' contains an expression that references undefined data.

**Faulty Expression**: `={{ $json.deeply.nested.undefined.path }}`
**Original Value**: `data`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Split Out' parameter 'fieldToSplitOut'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-d8d3c333",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.398289",
    "updatedAt": "2025-09-29T07:07:58.398304",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "7076854e-c7e8-45b5-9e5e-16678bffa254",
      "name": "OpenAI Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2420,
        480
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-3.5-turbo-1106",
          "cachedResultName": "gpt-3.5-turbo-1106"
        },
        "options": {
          "temperature": 0
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "00819f1c-2c60-4b7c-b395-445ec05fd898",
      "name": "Structured Output Parser",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2600,
        480
      ],
      "parameters": {
        "jsonSchema": "{\n  \"Invoice date\": { \"type\": \"date\" },\n  \"invoice number\": { \"type\": \"string\" },\n  \"Purchase order number\": { \"type\": \"string\" },\n  \"Supplier name\": { \"type\": \"string\" },\n  \"Supplier address\": {\n    \"type\": \"object\",\n    \"properties\": {\n      \"address 1\": { \"type\": \"string\" },\n      \"address 2\": { \"type\": \"string\" },\n      \"city\": { \"type\": \"string\" },\n      \"postcode\": { \"type\": \"string\" }\n    }\n  },\n  \"Supplier VAT identification number\": { \"type\": \"string\" },\n  \"Customer name\": { \"type\": \"string\" },\n  \"Customer address\": {\n    \"type\": \"object\",\n    \"properties\": {\n      \"address 1\": { \"type\": \"string\" },\n   ...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-7349e8de"
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.276964",
    "updatedAt": "2025-09-29T07:07:58.276981",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "1eb82902-a1d6-4eff-82a2-26908a82cea2",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        720,
        320
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "e0031fc3-27f1-45d9-910b-4c07dd322115",
      "name": "Get This Week's Menu",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        992,
        370
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {}
      },
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "2c556cc7-7d4e-4d80-902f-9686e756ed8c",
      "name": "Extract Available Courses",
      "type": "n8n-nodes-base.code",
      "position": [
        992,
        650
      ],
      "parameters": {
        "jsCode": "const pageData = JSON.parse($input.first().json.data)\nreturn pageData.props.pageProps.ssrPayload.courses.slice(0, 10);"
      },
      "typeVersion": 2,
      "notes": "This code node performs automated tasks as part of the workflow."
    },
    {
      "id": "90c39db6-6116-4c37-8d48-a6d5e8f8c777",
      "name": "Extract Server Data",
      "type": "n8n-nodes-base.html",
      "position": [
        992,
        510
      ],
      "parameters": {
        "options": {
          "trimValues": false,
          "cleanUpText": true
        },
        "operation": "extractHtmlContent",
        "extractionValues": {
          "values": [
            {
       ...

Output: The JSON is invalid because a comma is missing between properties. JSON requires commas to separate object properties and array elements.

Add the missing comma between object properties.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-38d7c8e1",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.402715",
    "updatedAt": "2025-09-29T07:07:58.402745",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "1bb3c94e-326e-41ca-82e4-102a598dba39",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -320,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "751b283b-ea88-4fcd-ace3-3c86631f8876",
      "name": "Embeddings Mistral Cloud",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1760,
        560
      ],
      "parameters": {
        "options": {}
      },
      "credentials": {
        "mistralCloudApi": {
          "id": "EIl2QxhXAS9Hkg37",
          "name": "Mistral Cloud account"
        }
      },
      "typeVersion": 1,
      "notes": "This embeddingsMistralCloud node performs automated tasks as part of the workflow."
    },
    {
      "id": "f0851949-1036-4040-84df-61295cc5db74",
      "name": "Default Data Loader",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1900,
        560
      ],
      "parameters": {
        "options": {
          "metadata": {
            "metadataValues": [
              {
                "name": "chapter",
                "value": "={{ $('For Each Section...').item.json.chapter }}"
              },
              {
                "name": "section",
                "value": "={{ $('For Each Section...').item.json.label }}"
              },
              {
                "name": "=title",
                "value": "={{ $('For Each Section...').item.json.title }}"
              },
              {
                "name": "content_...

Output:
The workflow has a broken data flow. The node '038060dc-e01d-40ae-878d-5043bc36ab91' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '038060dc-e01d-40ae-878d-5043bc36ab91'.

**Impact**: Data from '038060dc-e01d-40ae-878d-5043bc36ab91' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from '038060dc-e01d-40ae-878d-5043bc36ab91' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "038060dc-e01d-40ae-878d-5043bc36ab91": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '038060dc-e01d-40ae-878d-5043bc36ab91' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-6cb29fc2",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.404491",
    "updatedAt": "2025-09-29T07:07:58.404529",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "d61d8ff3-532a-4b0d-a5a7-e02d2e79ddce",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2660,
        480
      ],
      "parameters": {
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "b6d5c1cf-b4a1-4901-b001-0c375747ee63",
      "name": "No Operation, do nothing",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1660,
        520
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This noOp node performs automated tasks as part of the workflow."
    },
    {
      "id": "f4e08e32-bb96-4b5d-852e-26ad6fec3c8c",
      "name": "Add to Messages Stack",
      "type": "n8n-nodes-base.redis",
      "position": [
        1340,
        200
      ],
      "parameters": {
        "list": "=chat-buffer:{{ $json.From }}",
        "tail": true,
        "operation": "push",
        "messageData": "={{ $json.Body }}"
      },
      "credentials": {
        "redis": {
          "id": "zU4DA70qSDrZM1El",
          "name": "Redis account"
        }
      },
      "typeVersion": 1,
      "notes": "This redis node performs automated tasks as part of the workflow."
    },
    {
      "id": "181ae99e-ebe7-4e99-b5a5-999acc249621",
      "name": "Should Continue?",
      "type": "n8n-nodes-base.if",
      "position": [
        1660,
        360
      ],
      "parameters": {
        "option...

Output: The JSON is invalid because there is a trailing comma before a closing brace. Remove the extra comma.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-2db386e5",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.496667",
    "updatedAt": "2025-09-29T07:07:58.496682",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "d26b0190-c683-45fc-ac5b-0654af78f080",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1000,
        -620
      ],
      "parameters": {
        "width": 377.7154173079816,
        "height": 511.2813260861502,
        "content": "## Try It Out!\n\n### This workflow builds a competitor research agent using Exa.ai as a starting point. The HTTP Request tool is used to demonstrate how you can build powerful agents with minimal effort.\n\n* Using Exa's findSimilar search, we ask it to look for similar companies ie. competitors, to our source company.\n* This list of competitors is sent to 3 agents to scour the internet to find company overview, product offering and customer reviews.\n* A report is then compiled from the output of all 3 agents into a notion table.\n\n### Need Help?\nJoin the [Discord]({{ $env.WEBHOOK_URL }} or ask in the [Forum]({{ $env.WEBHOOK_URL }}\n\nHappy Hacking!"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "747d2f04-1e9c-45bb-b2ad-68da81524f4f",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -520,
        -420
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "5cb5f5a1-bc2d-4557-aff4-1993d8dcb99b",
      "name": "OpenAI Chat Model1",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1020,
        20
      ],
      "par...

Output:
The node '2sec' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "23GPrqZjHnIVvTEa",
  "meta": {
    "instanceId": "workflow-a8a62d39",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.445903",
    "updatedAt": "2025-09-29T07:07:58.445918",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Backup n8n Workflows to Bitbucket",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "b3363b9d-ea6e-47b7-99f9-f48a21805886",
      "name": "Calculate Wait Time",
      "type": "n8n-nodes-base.code",
      "position": [
        1400,
        -260
      ],
      "parameters": {
        "jsCode": "// Get all input items and ensure we have data\nif ($input.all().length === 0 || !$input.all()[0].headers) {\n  // If no headers available, return default wait time\n  return { waitTime: 1 };\n}\n\n// Check rate limit headers from previous request\nconst headers = $input.all()[0].headers;\nlet waitTime = 1; // Default 1 second\n\n// Check if we have rate limit information (safely)\nconst remaining = parseInt(headers['x-ratelimit-remaining']) || null;\nconst reset = parseInt(headers['x-ratelimit-reset']) || null;\n\n// Only adjust wait time if we have valid rate limit info\nif (remaining !== null && reset !== null) {\n  // If we're running low on requests, calculate a longer wait time\n  if (remaining < 100) {\n    // Calculate seconds until reset\n    const now = Math.floor(Date.now() / 1000);\n    const timeUntilReset = reset - now;\n    \n    // Spread remaining requests over time until reset\n    // Add 10% buffer to be safe\n    waitTime = Math.ceil((timeUntilReset / remaining) * 1.1);\n  } else if (remaining < 500) {\n    // Start slowing down earlier\n    waitTime = 2;\n  }\n}\n\n// Cap maximum wait time at 30 seconds\nwaitTime = Math.min(waitTime, 30);\n\nreturn { waitTime };"
      },
      "typeVersion": 2,
      "no...

Output: The JSON is invalid because there is a trailing comma before a closing brace. Remove the extra comma.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-b07e56b7",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.431622",
    "updatedAt": "2025-09-29T07:07:58.431636",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "cb62c9a5-2f43-4328-af94-84c2cb731d9c",
      "name": "Base Image",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        260,
        660
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.base }}"
        },
        "options": {
          "binaryPropertyName": "data_1"
        },
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "yOwz41gMQclOadgu",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3,
      "notes": "This googleDrive node performs automated tasks as part of the workflow."
    },
    {
      "id": "b1c304cc-9949-441a-ac2a-275c8d4c51fc",
      "name": "Google Gemini Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1120,
        900
      ],
      "parameters": {
        "options": {},
        "modelName": "models/gemini-1.5-pro-latest"
      },
      "credentials": {
        "googlePalmApi": {
          "id": "dSxo6ns5wn658r8N",
          "name": "Google Gemini(PaLM) Api account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatGoogleGemini node performs automated tasks as part of the workflow."
    },
    {
      "id": "964d94bf-be2a-424e-ab0e-c1c1fe260ebd",
      "name": "Structured Output Parser",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1320,
        900
      ],
      "parameters": {
        "schemaType": "manual",
        "inputSchema": "{\n  \"type\": \"array\",\n  \"items\": {\n    \"type\": \"object\",\n\t\"properties\": {...

Output:
The workflow has a broken data flow. The node '5e253123-89ba-42d5-b743-60bfd1ebae5b' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '5e253123-89ba-42d5-b743-60bfd1ebae5b'.

**Impact**: Data from '5e253123-89ba-42d5-b743-60bfd1ebae5b' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from '5e253123-89ba-42d5-b743-60bfd1ebae5b' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "5e253123-89ba-42d5-b743-60bfd1ebae5b": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '5e253123-89ba-42d5-b743-60bfd1ebae5b' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-2b0d6539",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.517438",
    "updatedAt": "2025-09-29T07:07:58.517457",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "f4b1bdd8-654d-4643-a004-ff1b2f32b5ae",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        580,
        1100
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "d6b1c410-81c3-486d-bdcb-86a4c6f7bf9e",
      "name": "Create Asset",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1940,
        580
      ],
      "parameters": {
        "url": "{{ $env.WEBHOOK_URL }}",
        "method": "POST",
        "options": {
          "redirect": {
            "redirect": {}
          }
        },
        "sendBody": true,
        "sendHeaders": true,
        "authentication": "{{ $credentials.genericCredentialType }}",
        "bodyParameters": {
          "parameters": [
            {
              "name": "mediaType",
              "value": "application/pdf"
            }
          ]
        },
        "genericAuthType": "httpHeaderAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "=Bearer {{ $json.access_token }}"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "id": "PU8GmSwXswwM1Fzq",
          "name": "Adobe API calls"
        }
      },
      "typeVersion": 4.1,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "9e900a45-d792-4dc5-938c-0d5cdfd2e647",
      "name": "Execute Workflow Tr...

Output:
The workflow has a broken data flow. The node 'be4e87e8-6e56-408f-b932-320023382f98' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'be4e87e8-6e56-408f-b932-320023382f98'.

**Impact**: Data from 'be4e87e8-6e56-408f-b932-320023382f98' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'be4e87e8-6e56-408f-b932-320023382f98' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "be4e87e8-6e56-408f-b932-320023382f98": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-ecd217bf",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.525549",
    "updatedAt": "2025-09-29T07:07:58.525567",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "49ab7596-665e-4a0f-bb8b-9dc04525ce88",
      "name": "Gmail",
      "type": "n8n-nodes-base.gmail",
      "position": [
        2340,
        1440
      ],
      "parameters": {
        "message": "={{ $json.html }}",
        "options": {},
        "subject": "Podcast Review"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "1MUdv1HbrQUFABiZ",
          "name": "Gmail account"
        }
      },
      "typeVersion": 2.1,
      "notes": "This gmail node performs automated tasks as part of the workflow."
    },
    {
      "id": "40aa23f4-69d6-46e5-84a2-b46a64a3f0af",
      "name": "TaddyTopDaily",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1620,
        820
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "sendHeaders": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "query",
              "value": "=query {   getTopChartsByGenres(          limitPerPage:10,     filterByCountry:UNITED_STATES_OF_AMERICA,     taddyType:PODCASTEPISODE,      genres:PODCASTSERIES_{{ $json.genre }}){     topChartsId      podcastEpisodes{       uuid       name audioUrl      podcastSeries{         uuid         name       }     }   } }"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "X-USER-ID"
            },
            {
              "name": "X-API-KEY"
            }
          ]
        }
      },
      "typeVersion": 4.2,
      "notes": "This ht...

Output:
The node 'Split Out' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Split Out'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-8bdbe4f9",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.593805",
    "updatedAt": "2025-09-29T07:07:58.593837",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "4fe13927-84cb-4227-9daa-d6cef72d10b9",
      "name": "CarrierNameLookup",
      "type": "n8n-nodes-base.code",
      "position": [
        740,
        320
      ],
      "parameters": {
        "jsCode": "var carrierCodes={}\nJSON.parse($('Get Carrier Codes').first().json.data).data.forEach(datum=>{\n  carrierCodes[datum.iataCode] = {icao:datum.icaoCode, name:datum.commonName}\n})\nreturn carrierCodes"
      },
      "typeVersion": 2,
      "notes": "This code node performs automated tasks as part of the workflow."
    },
    {
      "id": "cb0ab93c-5fc5-402d-8ac9-672960b14112",
      "name": "Gmail",
      "type": "n8n-nodes-base.gmail",
      "position": [
        2080,
        400
      ],
      "parameters": {
        "message": "=Hi! We just found a bargain flight:\nDeparture Time: {{ $json.time }}\n[{{ $json.legs[0].carrier }}] {{ $json.duration }} flight from {{ $('FromTo').first().json.from }} to {{ $('FromTo').first().json.to }}\n",
        "options": {},
        "subject": "=Bargain Flight Found! {{ $('FromTo').first().json.from }} -> {{ $('FromTo').first().json.to }} @ {{ $json.price }} on {{ $json.time }}"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "1MUdv1HbrQUFABiZ",
          "name": "Gmail account"
        }
      },
      "typeVersion": 2.1,
      "notes": "This gmail node performs automated tasks as part of the workflow."
    },
    {
      "id": "2f98b3e2-8a25-496e-89f3-b1ebe7e33192",
      "name": "Get Dates",
      "type": "n8n-nodes-base.code",
      "position": [
        940,
        300
      ],
      "parameters": {
        "jsCode": "const getNextSeve...

Output:
The node 'Amadeus Flight Search' (type: n8n-nodes-base.httpRequest) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "oAuth2Api": {
    "id": "dVIDzfKxdhu5ZEpE",
    "name": "Amadeus"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Amadeus Flight Search' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-8fa020a1",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.623825",
    "updatedAt": "2025-09-29T07:07:58.623843",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "38ffe41a-ecdf-4bb4-bd55-51998abab0f5",
      "name": "WhatsApp Trigger",
      "type": "n8n-nodes-base.whatsAppTrigger",
      "position": [
        220,
        300
      ],
      "webhookId": "0b1b3a9b-2f6a-4f5a-8385-6365d96f4802",
      "parameters": {
        "updates": [
          "messages"
        ]
      },
      "credentials": {
        "whatsAppTriggerApi": {
          "id": "H3uYNtpeczKMqtYm",
          "name": "WhatsApp OAuth account"
        }
      },
      "typeVersion": 1,
      "notes": "This whatsAppTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "a35ac268-eff0-46cd-ac4e-c9b047a3f893",
      "name": "Get Audio URL",
      "type": "n8n-nodes-base.whatsApp",
      "position": [
        1020,
        -160
      ],
      "parameters": {
        "resource": "media",
        "operation": "mediaUrlGet",
        "mediaGetId": "={{ $json.audio.id }}",
        "requestOptions": {}
      },
      "credentials": {
        "whatsAppApi": {
          "id": "9SFJPeqrpChOkAmw",
          "name": "WhatsApp account"
        }
      },
      "typeVersion": 1,
      "notes": "This whatsApp node performs automated tasks as part of the workflow."
    },
    {
      "id": "a3be543c-949c-4443-bf82-e0d00419ae23",
      "name": "Get Video URL",
      "type": "n8n-nodes-base.whatsApp",
      "position": [
        1020,
        200
      ],
      "parameters": {
        "resource": "media",
        "operation": "mediaUrlGet",
        "mediaGetId": "={{ $json.video.id }}",
        "requestOptions": {}
      },
      "credentials": {
        "whatsAppApi": {
          "id": "9S...

Output:
The node 'Google Gemini Video' (type: n8n-nodes-base.httpRequest) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "googlePalmApi": {
    "id": "dSxo6ns5wn658r8N",
    "name": "Google Gemini(PaLM) Api account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Google Gemini Video' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-5e23f32b:
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:58.596510",
    "updatedAt": "2025-09-29T07:07:58.596523",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "6d16b5be-8f7b-49f2-8523-9b84c62f2759",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1960,
        660
      ],
      "parameters": {
        "model": "gpt-4o-2024-08-06",
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "a6084f09-9a4f-478a-ac1a-ab1413628c1f",
      "name": "Capture Frames",
      "type": "n8n-nodes-base.code",
      "position": [
        720,
        460
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "language": "python",
        "pythonCode": "import cv2\nimport numpy as np\nimport base64\n\ndef extract_evenly_distributed_frames_from_base64(base64_string, max_frames=90):\n    # Decode the Base64 string into bytes\n    video_bytes = base64.b64decode(base64_string)\n    \n    # Write the bytes to a temporary file\n    video_path = '/tmp/temp_video.mp4'\n    with open(video_path, 'wb') as video_file:\n        video_file.write(video_bytes)\n    \n    # Open the video file using OpenCV\n    video_capture = cv2.VideoCapture(video_path)\n    \n    # Get the total number of frames in the video\n    total_frames = int(video_capture.get(cv2.CAP_PROP_FRAME_COUNT))\n    \n    # Calculate the step size to take 'max_frames' evenly distributed frames\n    step_size = max(1, total_frames // (max_frames - 1))\n    \n    # List to store selected frames as base64\n    sele...

Output: The JSON contains an unclosed string. All string values must be enclosed in double quotes.

Add the missing closing quote to complete the string.