runtime error

Exit code: 1. Reason: Traceback (most recent call last): File "/home/user/app/main.py", line 3, in <module> from app.gradio_interface import create_gradio_interface File "/home/user/app/app/gradio_interface.py", line 20, in <module> chatbot = RAGChatbot() File "/home/user/app/app/chatbot.py", line 20, in __init__ self.rag_system = RAGSystem() File "/home/user/app/app/rag_system.py", line 27, in __init__ self.embedding_function = embedding_functions.OpenAIEmbeddingFunction( File "/usr/local/lib/python3.10/site-packages/chromadb/utils/embedding_functions/openai_embedding_function.py", line 63, in __init__ raise ValueError(f"The {api_key_env_var} environment variable is not set.") ValueError: The CHROMA_OPENAI_API_KEY environment variable is not set.

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