LangChain Agents | Search Tools | Retriever Tools | Agent Executer | Example: Ask Cancer Questions

[@otimistarj]

if you ask agent_executor.invoke({"input":"what is heart disease?"}) it did not choose tavily search, why ?

[@CompuFlair]

could be because the answer was already in the context from the retriever

Hello CompuFlair and thanks for this video! I am wondering, what version of Langchain were you using for this tutorial? What about the FAISS?

[@CompuFlair]

Hi there. Here are the versions:
langchain==0.1.11, langchain-community==0.0.27 (for FAISS)

​@@CompuFlair Have you ever experienced this error with the retriever? pydantic.error_wrappers.ValidationError: 1 validation error for ConversationalRetrievalChain
retriever
instance of BaseRetriever expected (type=type_error.arbitrary_type; expected_arbitrary_type=BaseRetriever)