Update app.py

app.py

@@ -10,7 +10,7 @@ from pydantic import BaseModel
 from contextlib import asynccontextmanager
 from langchain_mcp_adapters.client import MultiServerMCPClient
 from langchain_google_genai import ChatGoogleGenerativeAI
-from langchain.agents import create_agent
+from langgraph.prebuilt import create_react_agent
 from langchain_core.messages import HumanMessage
 
 
@@ -126,4 +126,5 @@ async def chat(
         return {"error": f"Agent Error: {str(e)}"}
 
 if __name__ == "__main__":
-    uvicorn.run(app, host="0.0.0.0", port=7860)
+    uvicorn.run(app, host="0.0.0.0", port=7860)
+