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:
{
  "name": "Monthly Social Media Report",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Monthly Social Media Report",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "5d2f980a-4f7d-4e5f-acd9-29f532634bf3",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "monthly-social-media-report"
      },
      "id": "2f7e00f6-721f-4f11-8d8e-f6036cb4c4e3",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "f504b256-54f2-4862-8031-60c272844eca",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "16eaa7d4-b566-451d-abaf-f1c74ca7db33",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "monthly_social_media_report"
      },
      "id": "ac30243b-1100-4cf1-a0dd-baf77e2a953e",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate a...

Output:
The workflow has a broken data flow. The node 'Weaviate Insert' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Weaviate Insert'.

**Impact**: Data from 'Weaviate Insert' 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 'Weaviate Insert' 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": {
  "Weaviate Insert": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Weaviate Insert' to the workflow.


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:
{
  "name": "Reddit Upvote Alert",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Reddit Upvote Alert",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "65196870-2079-4376-92b9-a2f6d782a0d9",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "reddit-upvote-alert"
      },
      "id": "78135efe-8906-4437-9908-1e335442f6a2",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "d4d868f6-46e2-42d4-a294-fbd6ac733823",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {},
        "_injected_number_field": "not_a_number"
      },
      "id": "88ea99f8-1469-4c03-8fd1-ed1fab8a5516",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "indexName": "reddit_upvote_alert"
      },
      "id": "466c3a8b-e140-4b17-b4b7-f33415832ef9",
      "name": "Weaviate Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        270,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "...

Output:
The node 'Embeddings' 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 'Embeddings'.


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:
{
  "name": "Schedule Instagram Content from Airtable",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for Schedule Instagram Content from Airtable",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "7abba269-7e58-480c-8343-0f7dabcb52b8",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "schedule-instagram-content-from-airtable"
      },
      "id": "baa2150e-b0db-49a7-9ef7-2015ee41cb17",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "b3ccfb17-8668-4b7d-8b87-00806d6fd722",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "id": "d3c7a01c-465a-4d68-a1c3-753fa9d33dfb",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "schedule_instagram_content_from_airtable",
          "mode": "list",
          "cachedResultName": "schedule_instagram_content_from_airtable"
        }
      },
      "id": "327e4fcd-d941-4c80-90ab-e367aa6bc83b",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langch...

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:
{
  "name": "YouTube Comment Summarizer",
  "nodes": [
    {
      "parameters": {
        "content": "Placeholder for YouTube Comment Summarizer",
        "height": 530,
        "width": 1100,
        "color": 5
      },
      "id": "2a67ad9a-dcc2-4ef0-abca-f3255d63c2d0",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -480,
        -240
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "youtube-comment-summarizer"
      },
      "id": "2fde1554-d2d7-49c3-b337-405b6c3136c9",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "82191399-1a68-400c-9bea-0c3a9aa2ac37",
      "name": "Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -130,
        0
      ]
    },
    {
      "parameters": {
        "model": "={{ $env.UNDEFINED_ENV_VAR }}",
        "options": {}
      },
      "id": "8a7643de-d014-4377-9055-79ee738b6231",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        70,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "value": "youtube_comment_summarizer",
          "mode": "list",
          "cachedResultName": "youtube_comment_summarizer"
        }
      },
      "id": "841e4571-f1c6-49e0-8520-5d4a244b057f",
      "name": "Pinecone Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "positi...

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

**Faulty Expression**: `={{ $env.UNDEFINED_ENV_VAR }}`
**Original Value**: `text-embedding-3-small`

**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 'Embeddings' parameter 'model'.


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:
{
  "name": "Airport Lounge Finder",
  "nodes": [
    {
      "parameters": {
        "content": "## Airport Lounge Finder",
        "height": 520,
        "width": 1100
      },
      "id": "530a91dd-c148-4078-8c75-34bea7ab4100",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "airport_lounge_finder"
      },
      "id": "618297ee-f2c3-4771-b4b8-ca10085efb5c",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "53279a3e-2797-4b54-a15e-60123a6ae091",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "ce7a56bb-d36d-496e-baa3-fb242531cc96",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "airport_lounge_finder"
      },
      "id": "6a809676-30e2-4507-a7dc-41bed507b479",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreRedis",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "redisApi": {
          "id": "REDIS_API",
          "name": "Redis account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "airport_lounge_finder"
      },
      "id": "31dc5181-6f83-424d-a9fd-8706...

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:
{
  "name": "Currency Exchange Estimator",
  "nodes": [
    {
      "parameters": {
        "content": "## Currency Exchange Estimator",
        "height": 520,
        "width": 1100,
        "_injected_number_field": "not_a_number"
      },
      "id": "d5b91663-402e-4601-98df-3f8f1399993f",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "currency_exchange_estimator"
      },
      "id": "d081818b-2d6c-466a-9914-6740afcbd7af",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "ca2119ff-edea-4305-b2c5-7198b24e6538",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "6bf1f530-dcfe-463a-acb0-5cc4116ad4b4",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsHuggingFace",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "huggingFaceApi": {
          "id": "HF_API",
          "name": "HuggingFace"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "currency_exchange_estimator"
      },
      "id": "c5b61329-227e-42fe-b183-ce0891aa9017",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },
    {
      "parameters": ...

Output:
The node 'Sticky' 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: 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:
{
  "name": "Flight Price Drop Alert",
  "nodes": [
    {
      "parameters": {
        "content": "## Flight Price Drop Alert",
        "height": 520,
        "width": 1100
      },
      "id": "2e971a9b-a6ba-4497-8110-fe07b7a47b42",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "flight_price_drop_alert"
      },
      "id": "9acabf76-8493-4272-9738-3b188b02d72a",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "c0844651-967a-4a74-8ec7-21b8ad69c57e",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "9e584208-6ee6-4d88-928d-ebea7670029f",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "flight_price_drop_alert"
      },
      "id": "68ba07d4-4a88-488f-b516-3af28bf2e448",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "flight_price_drop_alert"
      },
      "id": "e8555f...

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:
{
  "name": "Hotel Review Sentiment",
  "nodes": [
    {
      "parameters": {
        "content": "## Hotel Review Sentiment",
        "height": 520,
        "width": 1100,
        "_injected_number_field": "not_a_number"
      },
      "id": "3f6dc161-7d19-4399-8fad-b801e4406848",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "hotel_review_sentiment"
      },
      "id": "5f8dd254-d4f6-4fa2-a17a-743eae80b24d",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "98b19fc7-ec4f-460e-948a-5a7855399235",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "2133104f-a360-4cc1-8dee-92a6da93ea3e",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsHuggingFace",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "huggingFaceApi": {
          "id": "HF_API",
          "name": "HuggingFace"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "hotel_review_sentiment"
      },
      "id": "ab99b854-32da-4fed-9fdc-6285c1e5beff",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "pineconeApi": {
          "id": "PINECONE_API",
          "name": "Pinecone account"
        }
      }
    },
    {
      "parameters": {
        "indexName...

Output:
The node 'Sticky' 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: 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:
{
  "name": "Local Attraction Recommender",
  "nodes": [
    {
      "parameters": {
        "content": "## Local Attraction Recommender",
        "height": 520,
        "width": 1100
      },
      "id": "c8875b2e-3004-4671-b42e-93cd99950bfb",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "local_attraction_recommender"
      },
      "id": "577956ce-6f51-4178-971a-8ebbf92c54a5",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "58455fc5-a384-4884-ba46-3564b1264b98",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "e6a4e734-16d1-4a67-a91a-d061074c9808",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "local_attraction_recommender"
      },
      "id": "027b33ed-0e77-4488-a955-90c3a570a90a",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "pineconeApi": {
          "id": "PINECONE_API",
          "name": "Pinecone account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "local_attraction_recommender"
   ...

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

**Faulty Expression**: `={{ $env.UNDEFINED_ENV_VAR }}`
**Original Value**: `Pinecone`

**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 'Tool' parameter 'name'.


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:
{
  "name": "Road Trip Stop Planner",
  "nodes": [
    {
      "parameters": {
        "content": "## Road Trip Stop Planner",
        "height": 520,
        "width": 1100
      },
      "id": "7d536184-157c-4ea5-82ab-16a36039a093",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "road_trip_stop_planner"
      },
      "id": "310516e2-6cf6-4f33-9b7d-64846b30b844",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "ea4b0330-8d19-43d9-8217-aecc0fb695f7",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "6053017d-4ff3-4dc3-b761-594b66511f4f",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "road_trip_stop_planner"
      },
      "id": "a57a88e7-f41b-4fe4-8fe2-7ffa700e6e0f",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "road_trip_stop_planner"
      },
      "id": "c1d0e07a-78...

Output:
The workflow has a broken data flow. The node 'Memory' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Memory'.

**Impact**: Data from 'Memory' 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 'Memory' 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": {
  "Memory": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


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:
{
  "name": "Travel Advisory Monitor:
  "nodes": [
    {
      "parameters": {
        "content": "## Travel Advisory Monitor",
        "height": 520,
        "width": 1100
      },
      "id": "ab9739ac-4194-4e32-9620-3923fc24f2f9",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "travel_advisory_monitor"
      },
      "id": "4af6e847-4430-45f0-9e76-a94d9e9a28ab",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "c463d22d-a263-4490-8884-8fd4856e0d60",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "5b0691eb-bc7d-4ffa-b631-3716aa36828b",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "travel_advisory_monitor"
      },
      "id": "8ca39aa9-31f3-4bde-ae95-5e227e459d47",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "pineconeApi": {
          "id": "PINECONE_API",
          "name": "Pinecone account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "travel_advisory_monitor"
      },
      "id": "9bcc8bb...

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.


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:
{
  "name" "Travel Itinerary Builder",
  "nodes": [
    {
      "parameters": {
        "content": "## Travel Itinerary Builder",
        "height": 520,
        "width": 1100
      },
      "id": "10740118-8e03-4ff7-bb9f-6045e8b852a6",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "travel_itinerary_builder"
      },
      "id": "41299a24-30dd-4e7c-ab6e-54839ecc7ec8",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "498deabf-f6a6-4538-a7c1-8484fbc355d0",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "81de715b-99e2-4fed-a9b7-bf59fdc0c6e0",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "travel_itinerary_builder"
      },
      "id": "aab7e17f-881f-4f94-810b-eae10cde713b",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "travel_itinerary_builder"
      },
      "id": "54...

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: 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:
{
  "name": "Visa Requirement Checker",
  "nodes": [
    {
      "parameters": {
        "content": "## Visa Requirement Checker",
        "height": 520,
        "width": 1100
      },
      "id": "2ac95194-ff1f-4720-8e5c-f21c7e344a47",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "visa_requirement_checker"
      },
      "id": "765b16c9-1458-4756-a31b-ac4eb5c3ab90",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "d3c71f7f-27f8-48ad-ac30-293647138afe",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "c8fb7955-8c09-42d5-940f-ba84912d1b2f",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsCohere",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "cohereApi": {
          "id": "COHERE_API",
          "name": "Cohere"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "={{ $node.NonExistentNode.json.data }}"
      },
      "id": "ad8b5ada-6bd5-49c6-a51b-fe251cfbb9fd",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreWeaviate",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "weaviateApi": {
          "id": "WEAVIATE_API",
          "name": "Weaviate account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "visa_requirement_checker"
      },
...

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

**Faulty Expression**: `={{ $node.NonExistentNode.json.data }}`
**Original Value**: `visa_requirement_checker`

**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 'Insert' parameter 'indexName'.


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:
{
  "name": "Weather Packing List Generator",
  "nodes": [
    {
      "parameters": {
        "content": "## Weather Packing List Generator",
        "height": 520,
        "width": 1100
      },
      "id": "663459c9-092e-4569-8301-369ad97e4060",
      "name": "Sticky",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -500,
        -250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "weather_packing_list_generator"
      },
      "id": "371ab737-f613-46a3-b7f4-58080792365f",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        -300,
        0
      ]
    },
    {
      "parameters": {
        "chunkSize": 400,
        "chunkOverlap": 40
      },
      "id": "75ba6799-d1bd-437c-9829-f65ddc07f512",
      "name": "Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        -100,
        0
      ]
    },
    {
      "parameters": {
        "model": "default"
      },
      "id": "fd275eeb-648c-417c-9f08-1ff3a5826648",
      "name": "Embeddings",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1,
      "position": [
        100,
        0
      ],
      "credentials": {
        "openAiApi": {
          "id": "OPENAI_API",
          "name": "OpenAI"
        }
      }
    },
    {
      "parameters": {
        "mode": "insert",
        "indexName": "weather_packing_list_generator"
      },
      "id": "bfd1a7dc-cc74-4c34-978c-bdae5d7e165b",
      "name": "Insert",
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1,
      "position": [
        300,
        0
      ],
      "credentials": {
        "supabaseApi": {
          "id": "SUPABASE_API",
          "name": "Supabase account"
        }
      }
    },
    {
      "parameters": {
        "indexName": "weather_packing_list_gene...

Output:
The workflow has a broken data flow. The node 'Embeddings' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Embeddings'.

**Impact**: Data from 'Embeddings' 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 'Embeddings' 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": {
  "Embeddings": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


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:
{
  "name": "AI product Images",
  "nodes": [
    {
      "parameters": {},
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        0,
        0
      ],
      "id": "1ddfbdfd-f3c0-4ef5-8b48-a3ae77a92955",
      "name": "When clicking \u2018Test workflow\u2019"
    },
    {
      "parameters": {
        "resource": "fileFolder",
        "filter": {
          "folderId": {
            "__rl": true,
            "value": "1NQ_9HXkMrjm_DPZENAmwRo0JJkvQm8BU",
            "mode": "id"
          }
        },
        "options": {}
      },
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        220,
        0
      ],
      "id": "6feb317d-1d43-4174-a5a3-b9e4a2bf46e6",
      "name": "Google Drive",
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "mVYRcVX1PvkdODpc",
          "name": "Google Drive account"
        }
      }
    },
    {
      "parameters": {
        "operation": "download",
        "fileId": {
          "__rl": true,
          "value": "={{$json[\"id\"]}}",
          "mode": "id"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        460,
        0
      ],
      "id": "b5232274-25a6-43b7-a424-dcfff47057ba",
      "name": "Google Drive1",
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "mVYRcVX1PvkdODpc",
          "name": "Google Drive account"
        }
      }
    },
    {
      "parameters": {
        "resource": "image",
        "operation": "analyze",
        "modelId": {
          "__rl": true,
          "value": "gpt-4o",
          "mode": "list",
          "cachedResultName": "GPT-4O"
        },
        "text": "Describe the visual style of this image, what stands out. if you had to have a holistic overview, as a professional facebook ads designer. How would you explain this image /  or images to be able to reproduce the elements that mak...

Output:
The workflow has a broken data flow. The node 'Google Drive' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Google Drive'.

**Impact**: Data from 'Google Drive' 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 'Google Drive' 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": {
  "Google Drive": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Google Drive' to the workflow.


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": "Q8On8rR6BkmPzDUd",
  "meta": {
    "instanceId": "f57770b08f6a574802832e927ed1b0063c627ffc5b95965abf0d4a7396150138"
  },
  "name": "chrome extension backend with AI",
  "tags": [],
  "nodes": [
    {
      "id": "0f38fe62-36d9-43da-a992-a3981377e89e",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        -220,
        -20
      ],
      "webhookId": "e9a97dd5-f1e7-4d5b-a6f1-be5f0c9eb96c",
      "parameters": {
        "path": "e9a97dd5-f1e7-4d5b-a6f1-be5f0c9eb96c",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 2
    },
    {
      "id": "83959562-edf5-4d37-bd11-47186c6a31c7",
      "name": "OpenAI",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        -40,
        -20
      ],
      "parameters": {
        "text": "You are an expert financial analyst tasked with providing an advanced technical analyses of a stock or crypto currency chart provided. Your analysis will be based on various technical indicators and will provide simple insights for novice traders. Just explain to traders were you expect the market is moving. Also warn them this is not a binding advice. Make sure to explain everything in infant language.",
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini",
          "cachedResultName": "GPT-4O-MINI"
        },
        "options": {},
        "resource": "image",
        "inputType": "base64",
        "operation": "analyze"
      },
      "credentials": {
        "openAiApi": {
          "id": "8MS1muoK4z86fxUs",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.7
    },
    {
      "id": "c6f1f833-7ba3-49c5-86df-f586e6bb5975",
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        140,
        -20
      ],
      "parameters": {
        "options": {},
        "respondWith": ...

Output:
The node 'Sticky Note' 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 'Sticky Note'.


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": "G8jRDBvwsMkkMiLN",
  "meta": {
    "instanceId": "205b3bc06c96f2dc835b4f00e1cbf9a937a74eeb3b47c99d0c30b0586dbf85aa"
  },
  "name": "[3/3] Anomaly detection tool (crops dataset)",
  "tags": [
    {
      "id": "spMntyrlE9ydvWFA",
      "name": "anomaly-detection",
      "createdAt": "2024-12-08T22:05:15.945Z",
      "updatedAt": "2024-12-09T12:50:19.287Z"
    }
  ],
  "nodes": [
    {
      "id": "e01bafec-eb24-44c7-b3c4-a60f91666350",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1200,
        180
      ],
      "parameters": {
        "color": 6,
        "width": 400,
        "height": 740,
        "content": "We are working here with crops dataset: \nExisting (so not anomalies) crops images in dataset are:\n- 'pearl_millet(bajra)',\n- 'tobacco-plant',\n- 'cherry',\n- 'cotton',\n- 'banana',\n- 'cucumber',\n- 'maize',\n- 'wheat',\n- 'clove',\n- 'jowar',\n- 'olive-tree',\n- 'soyabean',\n- 'coffee-plant',\n- 'rice',\n- 'lemon',\n- 'mustard-oil',\n- 'vigna-radiati(mung)',\n- 'coconut',\n- 'gram',\n- 'pineapple',\n- 'sugarcane',\n- 'sunflower',\n- 'chilli',\n- 'fox_nut(makhana)',\n- 'jute',\n- 'papaya',\n- 'tea',\n- 'cardamom',\n- 'almond'\n"
      },
      "typeVersion": 1
    },
    {
      "id": "b9943781-de1f-4129-9b81-ed836e9ebb11",
      "name": "Embed image",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        680,
        60
      ],
      "parameters": {
        "url": "https://api.voyageai.com/v1/multimodalembeddings",
        "method": "POST",
        "options": {},
        "jsonBody": "={{\n{\n \"inputs\": [\n {\n \"content\": [\n {\n \"type\": \"image_url\",\n \"image_url\": $('Image URL hardcode').first().json.imageURL\n }\n ]\n }\n ],\n \"model\": \"voyage-multimodal-3\",\n \"input_type\": \"document\"\n}\n}}",
        "sendBody": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth"
      },
...

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: 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:
{
  "nodes": [
    {
      "id": "6cdc45e5-1fa4-47fe-b80a-0e1560996936",
      "name": "Text",
      "type": "@n8n/n8n-nodes-langchain.toolWorkflow",
      "position": [
        1460,
        980
      ],
      "parameters": {
        "name": "text_retrieval_tool",
        "source": "parameter",
        "description": "Call this tool to return all text from the given website. Query should be full website URL.",
        "workflowJson": "{\n \"nodes\": [\n {\n \"parameters\": {},\n \"id\": \"05107436-c9cb-419b-ae8a-b74d309a130d\",\n \"name\": \"Execute workflow\",\n \"type\": \"n8n-nodes-base.manualTrigger\",\n \"typeVersion\": 1,\n \"position\": [\n 2220,\n 620\n ]\n },\n {\n \"parameters\": {\n \"assignments\": {\n \"assignments\": [\n {\n \"id\": \"253c2b17-c749-4f0a-93e8-5ff74f1ce49b\",\n \"name\": \"domain\",\n \"value\": \"={{ $json.query }}\",\n \"type\": \"string\"\n }\n ]\n },\n \"options\": {}\n },\n \"id\": \"bb8be616-3227-4705-8520-1827069faacd\",\n \"name\": \"Set domain\",\n \"type\": \"n8n-nodes-base.set\",\n \"typeVersion\": 3.3,\n \"position\": [\n 2440,\n 620\n ]\n },\n {\n \"parameters\": {\n \"assignments\": {\n \"assignments\": [\n {\n \"id\": \"ed0f1505-82b6-4393-a0d8-088055137ec9\",\n \"name\": \"domain\",\n \"value\": \"={{ $json.domain.startsWith(\\\"http\\\") ? $json.domain : \\\"http://\\\" + $json.domain }}\",\n \"type\": \"string\"\n }\n ]\n },\n \"options\": {}\n },\n \"id\": \"bdf29340-f135-489f-848e-1c7fa43a01df\",\n \"name\": \"Add protocool to domain\",\n \"type\": \"n8n-nodes-base.set\",\n \"typeVersion\": 3.3,\n \"position\": [\n 2640,\n 620\n ]\n },\n {\n \"parameters\": {\n \"assignments\": {\n \"assignments\": [\n {\n \"id\": \"2b1c7ff8-06a7-448b-99b7-5ede4b2e0bf0\",\n \"name\": \"response\",\n \"value\": \"={{ $json.data }}\",\n \"type\": \"string\"\n }\n ]\n },\n \"options\": {}\n },\n \"id\": \"9f0aa264-08c1-459a-bb99-e28599fe8f76\",\n \"name\": \"Set response\",\n \"type\": \"n8n-nodes-base.set\",\n \"typeVersion\": 3.3,\n \"...

Output:
The workflow has a broken data flow. The node 'Convert HTML to Markdown' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Convert HTML to Markdown'.

**Impact**: Data from 'Convert HTML to Markdown' 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 'Convert HTML to Markdown' 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": {
  "Convert HTML to Markdown": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Convert HTML to Markdown' to the workflow.


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": "26ba763460b97c249b82942b23b6384876dfeb9327513332e743c5f6219c2b8e"
  },
  "nodes": [
    {
      "id": "6359f725-1ede-4b05-bc19-05a7e85c0865",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        680,
        292
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "9e1e61c7-f5fd-4e8a-99a6-ccc5a24f5528",
      "name": "Fetch Source Image",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1000,
        292
      ],
      "parameters": {
        "url": "={{ $json.source_image }}",
        "options": {}
      },
      "typeVersion": 4.2
    },
    {
      "id": "9b1b94cf-3a7d-4c43-ab6c-8df9824b5667",
      "name": "Split Out Results Only",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        1428,
        323
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "result"
      },
      "typeVersion": 1
    },
    {
      "id": "fcbaf6c3-2aee-4ea1-9c5e-2833dd7a9f50",
      "name": "Filter Score >= 0.9",
      "type": "n8n-nodes-base.filter",
      "position": [
        1608,
        323
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "367d83ef-8ecf-41fe-858c-9bfd78b0ae9f",
              "operator": {
                "type": "number",
                "operation": "gte"
              },
              "leftValue": "={{ $json.score }}",
              "rightValue": 0.9
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "954ce7b0-ef82-4203-8706-17cfa5e5e3ff",
      "name": "Crop Object From Image",
      "type": "n8n-nodes-base.editImage",
      "position": [
        2080,
        432
  ...

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: 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": "26ba763460b97c249b82942b23b6384876dfeb9327513332e743c5f6219c2b8e"
  },
  "nodes": [
    {
      "id": "c5525f47-4d91-4b98-87bb-566b90da64a1:
      "name": "Local File Trigger",
      "type": "n8n-nodes-base.localFileTrigger",
      "position": [
        660,
        700
      ],
      "parameters": {
        "path": "/home/node/host_mount/local_file_search",
        "events": [
          "add",
          "change",
          "unlink"
        ],
        "options": {
          "awaitWriteFinish": true
        },
        "triggerOn": "folder"
      },
      "typeVersion": 1
    },
    {
      "id": "804334d6-e34d-40d1-9555-b331ffe66f6f",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        664.5766613599001,
        881.8474780113352
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "7ab0e284-b667-4d1f-8ceb-fb05e4081a06",
      "name": "Set Variables",
      "type": "n8n-nodes-base.set",
      "position": [
        840,
        700
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "35ea70c4-8669-4975-a68d-bbaa094713c0",
              "name": "directory",
              "type": "string",
              "value": "/home/node/BankStatements"
            },
            {
              "id": "1d081d19-ff4e-462a-9cbe-7af2244bf87f",
              "name": "file_added",
              "type": "string",
              "value": "={{ $json.event === 'add' && $json.path || ''}}"
            },
            {
              "id": "18f8dc03-51ca-48c7-947f-87ce8e1979bf",
              "name": "file_changed",
              "type": "string",
              "value": "={{ $json.event === 'change' && $json.path || '' }}"
            },
            {
              "id": "65074ff7-037b-4b3b-b2c3-8a61755ab43b",
              "name": "file_deleted",
              "type": "string",
 ...

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


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": "26ba763460b97c249b82942b23b6384876dfeb9327513332e743c5f6219c2b8e"
  },
  "nodes": [
    {
      "id": "1bb3c94e-326e-41ca-82e4-102a598dba39",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -320,
        300
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "751b283b-ea88-4fcd-ace3-3c86631f8876",
      "name": "Embeddings Mistral Cloud",
      "type": "@n8n/n8n-nodes-langchain.embeddingsMistralCloud",
      "position": [
        1760,
        560
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1
    },
    {
      "id": "f0851949-1036-4040-84df-61295cc5db74",
      "name": "Default Data Loader",
      "type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
      "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_order",
                "value": "={{ $itemIndex }}"
              }
            ]
          }
        },
        "jsonData": "={{ $json.content }}",
        "jsonMode": "expressionData"
      },
      "typeVersion": 1
    },
    {
      "id": "41d10b61-9fbe-446e-a65a-0db6e0116e5b",
      "name": "Recursive Character Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
      "position": [
        1920,
        680
      ],
      "parameters": {
        "options"...

Output:
The node 'Embeddings Mistral Cloud' (type: @n8n/n8n-nodes-langchain.embeddingsMistralCloud) 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": {
  "mistralCloudApi": {
    "id": "EIl2QxhXAS9Hkg37",
    "name": "Mistral Cloud 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 'Embeddings Mistral Cloud' node.


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": "a58HZKwcOy7lmz56",
  "meta": {
    "instanceId": "178ef8a5109fc76c716d40bcadb720c455319f7b7a3fd5a39e4f336a091f524a",
    "templateCredsSetupCompleted": true
  },
  "name": "Building RAG Chatbot for Movie Recommendations with Qdrant and Open AI",
  "tags": [],
  "nodes": [
    {
      "id": "06a34e3b-519a-4b48-afd0-4f2b51d2105d",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        4980,
        740
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "9213003d-433f-41ab-838b-be93860261b2",
      "name": "GitHub",
      "type": "n8n-nodes-base.github",
      "position": [
        5200,
        740
      ],
      "parameters": {
        "owner": {
          "__rl": true,
          "mode": "name",
          "value": "mrscoopers"
        },
        "filePath": "Top_1000_IMDB_movies.csv",
        "resource": "file",
        "operation": "get",
        "repository": {
          "__rl": true,
          "mode": "list",
          "value": "n8n_demo",
          "cachedResultUrl": "https://github.com/mrscoopers/n8n_demo",
          "cachedResultName": "n8n_demo"
        },
        "additionalParameters": {}
      },
      "credentials": {
        "githubApi": {
          "id": "VbfC0mqEq24vPIwq",
          "name": "GitHub n8n demo"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "9850d1a9-3a6f-44c0-9f9d-4d20fda0b602",
      "name": "Extract from File",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        5360,
        740
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1
    },
    {
      "id": "7704f993-b1c9-477a-8b5a-77dc2cb68161",
      "name": "Embeddings OpenAI",
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "position": [
        5560,
        940
      ],
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "cred...

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: 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": "FD0bHNaehP3LzCNN",
  "meta": {
    "instanceId": "69133932b9ba8e1ef14816d0b63297bb44feb97c19f759b5d153ff6b0c59e18d"
  },
  "name": "Chat with GitHub OpenAPI Specification using RAG (Pinecone and OpenAI)",
  "tags": [],
  "nodes": [
    {
      "id": "362cb773-7540-4753-a401-e585cdf4af8a",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        0,
        0
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "45470036-cae6-48d0-ac66-addc8999e776",
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        300,
        0
      ],
      "parameters": {
        "url": "https://raw.githubusercontent.com/github/rest-api-description/refs/heads/main/descriptions/api.github.com/api.github.com.json",
        "options": {}
      },
      "typeVersion": 4.2
    },
    {
      "id": "a9e65897-52c9-4941-bf49-e1a659e442ef",
      "name": "Pinecone Vector Store",
      "type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
      "position": [
        520,
        0
      ],
      "parameters": {
        "mode": "insert",
        "options": {},
        "pineconeIndex": {
          "__rl": true,
          "mode": "list",
          "value": "n8n-demo",
          "cachedResultName": "n8n-demo"
        }
      },
      "credentials": {
        "pineconeApi": {
          "id": "bQTNry52ypGLqt47",
          "name": "PineconeApi account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "c2a2354b-5457-4ceb-abfc-9a58e8593b81",
      "name": "Default Data Loader",
      "type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
      "position": [
        660,
        180
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1
    },
    {
      "id": "7338d9ea-ae8f-46eb-807f-a15dc7639fc9",
      "name": "Recursive Character Text Splitter",
      "type": "@n8n/n8n-nodes-langchain.textSpl...

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: 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": "AAjX1BuwhyXpo8xP",
  "meta": {
    "instanceId": "558d88703fb65b2d0e44613bc35916258b0f0bf983c5d4730c00c424b77ca36a"
  },
  "name": "Google Analytics: Weekly Report",
  "tags": [],
  "nodes": [
    {
      "id": "91ba5982-e226-4f0b-af0d-8c9a44b08279",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        -1740,
        300
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "weeks",
              "triggerAtDay": [
                1
              ],
              "triggerAtHour": 7
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "62c38eaf-2222-4d22-8589-677f36bce10d",
      "name": "Google Analytics Letzte 7 Tage",
      "type": "n8n-nodes-base.googleAnalytics",
      "position": [
        -1540,
        300
      ],
      "parameters": {
        "metricsGA4": {
          "metricValues": [
            {
              "listName": "screenPageViews"
            },
            {},
            {
              "listName": "sessions"
            },
            {
              "listName": "sessionsPerUser"
            },
            {
              "name": "averageSessionDuration",
              "listName": "other"
            },
            {
              "name": "ecommercePurchases",
              "listName": "other"
            },
            {
              "name": "averagePurchaseRevenue",
              "listName": "other"
            },
            {
              "name": "purchaseRevenue",
              "listName": "other"
            }
          ]
        },
        "propertyId": {
          "__rl": true,
          "mode": "list",
          "value": "345060083",
          "cachedResultUrl": "https://analytics.google.com/analytics/web/#/p345060083/",
          "cachedResultName": "https://www.ep-reisen.de \u00a0\u2013 GA4"
        },
        "dimensionsGA4": {
          "dimensionValues": [
        ...

Output:
The node 'Assign data' 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 'Assign data'.


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": "408f9fb9940c3cb18ffdef0e0150fe342d6e655c3a9fac21f0f644e8bedabcd9"
  },
  "nodes": [
    {
      "id": "63501cc8-77c9-4037-9f70-da23b6d20b03",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        280,
        440
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "00de989c-d9e9-4b42-b5db-7097800a6017",
      "name": "Zip Entries",
      "type": "n8n-nodes-base.set",
      "position": [
        1380,
        360
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "833a554d-2b39-4160-9348-18b17b28ce30",
              "name": "data",
              "type": "array",
              "value": "={{ \n $json.review_author.map((review_author, idx) => ({\n review_author,\n review_author_reviews_count: $json.review_author_reviews_count[idx].replace(' reviews', '').toInt(),\n review_country: $json.review_country[idx],\n review_date: $json.review_date[idx].toDate(),\n review_date_of_experience: $json.review_date_of_experience[idx].replace('Date of experience: ', '').toDate(),\n review_rating: $json.review_rating[idx].toInt(),\n review_text: $json.review_text[idx],\n review_title: $json.review_title[idx],\n review_url: $('Get TrustPilot Page').params.url.match(/https:\\/\\/[^/]+/) + $json.review_url[idx],\n }))\n}}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "9290e116-c001-49d5-ae4c-d91cd246f2c2",
      "name": "Extract Reviews",
      "type": "n8n-nodes-base.html",
      "position": [
        1140,
        520
      ],
      "parameters": {
        "options": {
          "trimValues": true
        },
        "operation": "extractHtmlContent",
        "extractionValues": {
          "values": [
            {
              "key": "review_author",
              "cssSelector": "[data-service-review-card-paper] ...

Output:
The workflow has a broken data flow. The node 'Find Reviews' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'Find Reviews'.

**Impact**: Data from 'Find Reviews' 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 'Find Reviews' 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": {
  "Find Reviews": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'Find Reviews' to the workflow.


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": [
    {
      "id": "c17e444e-0a5e-4bfe-8de6-c3185de4465d",
      "name": "Grants to List",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        -240,
        -180
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "oppHits"
      },
      "typeVersion": 1
    },
    {
      "id": "9251d39c-6098-42fa-aadd-3a22464dee64",
      "name": "Get Grant Details",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        280,
        -280
      ],
      "parameters": {
        "url": "https://apply07.grants.gov/grantsws/rest/opportunity/details",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "contentType": "form-urlencoded",
        "bodyParameters": {
          "parameters": [
            {
              "name": "oppId",
              "value": "={{ $json.id }}"
            }
          ]
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "ade994d6-a1f8-45bf-a82e-83eb38da08d6",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        440,
        -120
      ],
      "parameters": {
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "4d81b20e-0038-48d3-840c-3fcf8b798a0d",
      "name": "Summarize Synopsis",
      "type": "@n8n/n8n-nodes-langchain.informationExtractor",
      "position": [
        460,
        -280
      ],
      "parameters": {
        "text": "=Agency: {{ $json.synopsis.agencyName }}\nTitle: {{ $json.opportunityTitle }}\nSynopsis: {{ $json.synopsis.synopsisDesc }}",
        "options": {
          "systemPromptTemplate": "You've been given a grant opportunity listing. Help summarize the opportunity in simple terms."
        },
        "schemaType": "manual",
        "inputSchema": "{\n\t\"type\": \"object\",\n\t\"p...

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: 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": "6a2a7715680b8313f7cb4676321c5baa46680adfb913072f089f2766f42e43bd"
  },
  "nodes": [
    {
      "id": "f4b3833b-cf25-4bbc-927c-080586c5713c",
      "name": "Sticky Note9",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        700,
        760
      ],
      "parameters": {
        "color": 7,
        "width": 330.5152611046425,
        "height": 239.5888196628349,
        "content": "### ... or watch set up video [13 min]\n[![Youtube Thumbnail](https://cflobdhpqwnoisuctsoc.supabase.co/storage/v1/object/public/my_storage/Youtube%20AI%20Agent%20Blur.png)](https://youtu.be/6RmLZS8Yl4E)\n"
      },
      "typeVersion": 1
    },
    {
      "id": "64d96c53-b3e2-4aea-9a29-9b9e5c729f4f",
      "name": "Sticky Note7",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        400,
        240
      ],
      "parameters": {
        "color": 7,
        "width": 636.2128494576581,
        "height": 497.1532689930921,
        "content": "![5min Logo](https://cflobdhpqwnoisuctsoc.supabase.co/storage/v1/object/public/my_storage/banner.png)\n## AI Agent To Chat With Youtube\n**Made by [Mark Shcherbakov](https://www.linkedin.com/in/marklowcoding/) from community [5minAI](https://www.skool.com/5minai)**\n\nNavigating the content generation and optimization process can be complex, especially without significant audience insight. This workflow automates insights extraction from YouTube videos and comments, empowering users to create more engaging and relevant content effectively.\n\nThe workflow integrates various APIs to gather insights from YouTube videos, enabling automated commentary analysis, video transcription, and thumbnail evaluation. The main functionalities include:\n- Extracting user preferences from comments.\n- Transcribing video content for enhanced understanding.\n- Analyzing thumbnails via AI for maximum viewer engagement insights.\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "57d2ede9-1bf9...

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: 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": "257476b1ef58bf3cb6a46e65fac7ee34a53a5e1a8492d5c6e4da5f87c9b82833",
    "templateId": "2473"
  },
  "nodes": [
    {
      "id": "1205b121-8aaa-4e41-874b-4e81aad6374e",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        120,
        600
      ],
      "parameters": {
        "color": 4,
        "width": 462.4041757955455,
        "height": 315.6388466176832,
        "content": "## Generate SEO Seed Keywords Using AI\n\nThis flow uses an AI node to generate Seed Keywords to focus SEO efforts on based on your ideal customer profile\n\n**Outputs:** \n- List of 20 Seed Keywords\n\n\n**Pre-requisites / Dependencies:**\n- You know your ideal customer profile (ICP)\n- An AI API account (either OpenAI or Anthropic recommended)"
      },
      "typeVersion": 1
    },
    {
      "id": "d2654d75-2b64-4ec3-b583-57d2b6b7b195",
      "name": "Sticky Note13",
      "type": "n8n-nodes-base.stickyNote",
      "disabled": true,
      "position": [
        640,
        920
      ],
      "parameters": {
        "color": 7,
        "width": 287.0816455493243,
        "height": 330.47923074942287,
        "content": "**Generate draft seed KW based on ICP**\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "d248a58e-3705-4b6f-99cb-e9187e56781c",
      "name": "Anthropic Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatAnthropic",
      "position": [
        680,
        1120
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "71517d83-59f5-441a-8a75-c35f4e06a8a2",
      "name": "Split Out",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        980,
        980
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "output.answer"
      },
      "typeVersion": 1
    },
    {
      "id": "1c68eff5-6478-4eba-9abe-3ccea2a17a5c",
      "name": "Sticky Note12",
      "type": "n8n-nodes-base....

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: 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": "744G7emgZe0pXaPB",
  "meta": {
    "instanceId": "d868e3d040e7bda892c81b17cf446053ea25d2556fcef89cbe19dd61a3e876e9"
  },
  "name": "Hacker News to Video Template - AlexK1919",
  "tags": [
    {
      "id": "04PL2irdWYmF2Dg3",
      "name": "RunwayML",
      "createdAt": "2024-11-15T05:55:30.783Z",
      "updatedAt": "2024-11-15T05:55:30.783Z"
    },
    {
      "id": "yrY6updwSCXMsT0z",
      "name": "Video",
      "createdAt": "2024-11-15T05:55:34.333Z",
      "updatedAt": "2024-11-15T05:55:34.333Z"
    },
    {
      "id": "QsH2EXuw2e7YCv0K",
      "name": "OpenAI",
      "createdAt": "2024-11-15T04:05:20.872Z",
      "updatedAt": "2024-11-15T04:05:20.872Z"
    },
    {
      "id": "lvPj9rYRsKOHCi4J",
      "name": "Creatomate",
      "createdAt": "2024-11-19T15:59:16.134Z",
      "updatedAt": "2024-11-19T15:59:16.134Z"
    },
    {
      "id": "9LXACqpQLNtrM6or",
      "name": "Leonardo",
      "createdAt": "2024-11-19T15:59:21.368Z",
      "updatedAt": "2024-11-19T15:59:21.368Z"
    }
  ],
  "nodes": [
    {
      "id": "c777c41b-842d-4504-a1a0-ccbb034a0fdd",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -320,
        300
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "74fafd7c-55a4-46ec-b4a8-33d46f2b5b54",
      "name": "Hacker News",
      "type": "n8n-nodes-base.hackerNews",
      "position": [
        -20,
        300
      ],
      "parameters": {
        "resource": "all",
        "additionalFields": {}
      },
      "typeVersion": 1
    },
    {
      "id": "9cd87fd2-6a38-463a-a22e-e0c34910818f",
      "name": "Loop Over Items",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        440,
        300
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 3
    },
    {
      "id": "611b24cd-558b-4025-a0a8-ea355ba61988",
      "name": "OpenAI Chat Model3",
      "type": "@n8n/n8n-n...

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: 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": "5NAbfX550LJsfz6f",
  "meta": {
    "instanceId": "00493e38fecfc163cb182114bc2fab90114038eb9aad665a7a752d076920d3d5",
    "templateCredsSetupCompleted": true
  },
  "name": "Make OpenAI Citation for File Retrieval RAG",
  "tags": [
    {
      "id": "urxRtGxxLObZWPvX",
      "name": "sample",
      "createdAt": "2024-09-13T02:43:13.014Z",
      "updatedAt": "2024-09-13T02:43:13.014Z"
    },
    {
      "id": "nMXS3c9l1WqDwWF5",
      "name": "assist",
      "createdAt": "2024-12-23T16:09:38.737Z",
      "updatedAt": "2024-12-23T16:09:38.737Z"
    }
  ],
  "nodes": [
    {
      "id": "b9033511-3421-467a-9bfa-73af01b99c4f",
      "name": "Aggregate",
      "type": "n8n-nodes-base.aggregate",
      "position": [
        740,
        120
      ],
      "parameters": {
        "options": {},
        "aggregate": "aggregateAllItemData"
      },
      "typeVersion": 1,
      "alwaysOutputData": true
    },
    {
      "id": "a61dd9d3-4faa-4878-a6f3-ba8277279002",
      "name": "Window Buffer Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        980,
        -320
      ],
      "parameters": {},
      "typeVersion": 1.3
    },
    {
      "id": "2daabca5-37ec-4cad-9157-29926367e1a7",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        220,
        320
      ],
      "parameters": {
        "color": 3,
        "width": 840,
        "height": 80,
        "content": "## Within N8N, there will be a chat button to test"
      },
      "typeVersion": 1
    },
    {
      "id": "bf4485b1-cd94-41c8-a183-bf1b785f2761",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -440,
        -520
      ],
      "parameters": {
        "color": 5,
        "width": 500,
        "height": 720,
        "content": "## Make OpenAI Citation for File Retrieval RAG\n\n## Use case\n\nIn this example, we will ensure that all texts from the OpenAI assis...

Output:
The node 'OpenAI Assistant with Vector Store' (type: @n8n/n8n-nodes-langchain.openAi) 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": {
  "openAiApi": {
    "id": "UfNrqPCRlD8FD9mk",
    "name": "OpenAi Lourival"
  }
}
```

**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 'OpenAI Assistant with Vector Store' node.


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": "293b70f0-06e8-4db5-befd-bfaed1f3575a",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -460,
        80
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "1c473546-6280-412d-9f8e-b43962365d78",
      "name": "Set Params",
      "type": "n8n-nodes-base.set",
      "position": [
        -160,
        -60
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "8b5c6ca0-5ca8-4f67-abc1-44341cf419bc",
              "name": "system_prompt",
              "type": "string",
              "value": "You are an n8n fanboy."
            },
            {
              "id": "7c36c362-6269-4564-b6fe-f82126bc8f5e",
              "name": "user_prompt",
              "type": "string",
              "value": "What are the differences between n8n and Make?"
            },
            {
              "id": "4366d2b5-ad22-445a-8589-fddab1caa1ab",
              "name": "domains",
              "type": "string",
              "value": "n8n.io, make.com"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "894bd6a4-5db7-45fb-a8e0-1a81af068bbf",
      "name": "Clean Output",
      "type": "n8n-nodes-base.set",
      "position": [
        580,
        -100
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "5859093c-6b22-41db-ac6c-9a9f6f18b7e3",
              "name": "output",
              "type": "string",
              "value": "={{ $json.choices[0].message.content }}"
            },
            {
              "id": "13208fff-5153-45a7-a1cb-fe49e32d9a03",
              "name": "citations",
              "type": "array",
              "value": "={{ $json.citations }}"
            }
          ]
        }
      },
      "typeVersion"...

Output:
The node 'Perplexity Request' 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 'Perplexity Request'.


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": "26ba763460b97c249b82942b23b6384876dfeb9327513332e743c5f6219c2b8e"
  },
  "nodes": [
    {
      "id": "bebbf9cf-8103-4694-a3be-ae3ee1e9ebaf",
      "name": "Watch For Bank Statements",
      "type": "n8n-nodes-base.localFileTrigger",
      "position": [
        780,
        400
      ],
      "parameters": {
        "path": "/home/node/host_mount/reconciliation_project",
        "events": [
          "add"
        ],
        "options": {
          "ignored": "!**/*.csv"
        },
        "triggerOn": "folder"
      },
      "typeVersion": 1
    },
    {
      "id": "eca26bed-ba44-4507-97d4-9154e26908a5",
      "name": "Get Tenant Details",
      "type": "@n8n/n8n-nodes-langchain.toolCode",
      "position": [
        1660,
        540
      ],
      "parameters": {
        "name": "get_tenant_details",
        "jsCode": "const xlsx = require('xlsx');\n\nconst { spreadsheet_location } = $('Set Variables').item.json;\nconst sheetName = 'tenants';\n\nconst wb = xlsx.readFile(spreadsheet_location, { sheets: [sheetName] });\nconst rows = xlsx.utils.sheet_to_json(wb.Sheets[sheetName], { raw: false });\n\nconst queryToList = [].concat(typeof query === 'string' ? query.split(',') : query);\n\nconst result = queryToList.map(q => (\n rows.find(row =>\n row['Tenant Name'].toLowerCase() === q.toLowerCase()\n || row['Tenant ID'].toLowerCase() === q.toString().toLowerCase()\n )\n));\n\nreturn result ? JSON.stringify(result) : `No results were found for ${query}`;",
        "description": "Call this tool to get a tenant's details which includes their tenancy terms, rent amount and any notes attached to their account. Pass in one or an array of either the tenant ID or the name of the tenant."
      },
      "typeVersion": 1.1
    },
    {
      "id": "76b68c2f-8d33-4f61-a442-732e784b733a",
      "name": "Structured Output Parser",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        1920,
        540
      ],...

Output:
The node 'Sticky Note' 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.