runtime error

Exit code: 1. Reason: ocumentation here <https://python.langchain.com/docs/versions/v0_2/> from langchain.vectorstores import FAISS /home/user/app/retriever.py:22: LangChainDeprecationWarning: The class `ChatOpenAI` was deprecated in LangChain 0.0.10 and will be removed in 1.0. An updated version of the class exists in the :class:`~langchain-openai package and should be used instead. To use it run `pip install -U :class:`~langchain-openai` and import as `from :class:`~langchain_openai import ChatOpenAI``. llm = ChatOpenAI( /home/user/app/retriever.py:58: LangChainDeprecationWarning: LangChain agents will continue to be supported, but it is recommended for new use cases to be built with LangGraph. LangGraph offers a more flexible and full-featured framework for building agents, including support for tool-calling, persistence of state, and human-in-the-loop workflows. For details, refer to the `LangGraph documentation <https://langchain-ai.github.io/langgraph/>`_ as well as guides for `Migrating from AgentExecutor <https://python.langchain.com/docs/how_to/migrate_agent/>`_ and LangGraph's `Pre-built ReAct agent <https://langchain-ai.github.io/langgraph/how-tos/create-react-agent/>`_. retriever_agent = initialize_agent( /home/user/app/retriever.py:73: LangChainDeprecationWarning: The class `HuggingFaceEmbeddings` was deprecated in LangChain 0.2.2 and will be removed in 1.0. An updated version of the class exists in the :class:`~langchain-huggingface package and should be used instead. To use it run `pip install -U :class:`~langchain-huggingface` and import as `from :class:`~langchain_huggingface import HuggingFaceEmbeddings``. embedding_model = HuggingFaceEmbeddings(model_name="BAAI/bge-base-en-v1.5") Traceback (most recent call last): File "/home/user/app/app.py", line 16, in <module> from retriever import retriever_agent File "/home/user/app/retriever.py", line 139, in <module> pdftext = retrieve_and_extract_papers(retriever_output) NameError: name 'retriever_output' is not defined. Did you mean: 'retriever_agent'?

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