langchain — FixDevsLatest fixes and solutions for langchain errors on FixDevs.https://fixdevs.com/enMon, 06 Apr 2026 00:00:00 GMTFix: LangChain Python Not Working — ImportError, Pydantic, and Deprecated Classeshttps://fixdevs.com/blog/langchain-python-not-working/https://fixdevs.com/blog/langchain-python-not-working/How to fix LangChain Python errors — ImportError from package split, Pydantic v2 compatibility, AgentExecutor deprecated, ConversationBufferMemory removed, LCEL output type mismatches, and tool calling failures.Mon, 06 Apr 2026 00:00:00 GMTpythonlangchainllmaidebuggingFixDevs