Web searching problem

[yangc]

Hello,

When running examples/rag/langgraph_crag_local.ipynb, anytime when web search is involved, I got the following error:

[GIN] 2024/05/12 - 01:53:49 | 200 | 666.820623ms | 127.0.0.1 | POST "/api/chat"
---GRADE: DOCUMENT NOT RELEVANT---
---ASSESS GRADED DOCUMENTS---
---DECISION: ALL DOCUMENTS ARE NOT RELEVANT TO QUESTION, TRANSFORM QUERY---
"Node 'grade_documents':"
'\n---\n'
---TRANSFORM QUERY---
[GIN] 2024/05/12 - 01:53:49 | 200 | 356.748435ms | 127.0.0.1 | POST "/api/chat"
"Node 'transform_query':"
'\n---\n'
---WEB SEARCH---

TypeError Traceback (most recent call last)
in <cell line: 5>()
3 # Run
4 inputs = {"question": "Which searching engine is the best?"}
----> 5 for output in app.stream(inputs):
6 for key, value in output.items():
7 # Node

6 frames
in (.0)
109 # Web search
110 docs = web_search_tool.invoke({"query": question})
--> 111 web_results = "\n".join([d["content"] for d in docs])
112 web_results = Document(page_content=web_results)
113 documents.append(web_results)

TypeError: string indices must be integers

Could you help clarify this?

Thanks,
Yang

[yangc]

It turned out something is wrong with my Tavily API key. Once it's solved, it's all set.