runtime error

Exit code: 1. Reason: WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning. [notice] A new release of pip is available: 26.1.2 -> 26.2.1 [notice] To update, run: pip install --upgrade pip Traceback (most recent call last): File "/app/app/chat_ui.py", line 19, in <module> retriever = RAGRetriever(index_dir="rag_index") File "/app/app/rag.py", line 12, in __init__ self.index = faiss.read_index(str(self.index_dir / "faiss.index")) File "/usr/local/lib/python3.10/site-packages/faiss/swigfaiss.py", line 13541, in read_index return _swigfaiss.read_index(*args) RuntimeError: Error in faiss::FileIOReader::FileIOReader(const char*) at /project/faiss/impl/io.cpp:69: Error: 'f' failed: could not open rag_index/faiss.index for reading: No such file or directory

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