runtime error

Exit code: 1. Reason: upgrade many imports. Please see documentation here <https://python.langchain.com/docs/versions/v0_2/> from langchain.vectorstores import Chroma All packages installed successfully! sh: 1: !rm: not found Downloading... From (original): https://drive.google.com/uc?id=19JKWygyiD2IC_1xdDn1u3vxGZ7aT43d1 From (redirected): https://drive.google.com/uc?id=19JKWygyiD2IC_1xdDn1u3vxGZ7aT43d1&confirm=t&uuid=0fdd6a4b-b0a9-4088-8a13-0eaaf9017197 To: /home/user/app/files.zip 0%| | 0.00/52.3M [00:00<?, ?B/s] 100%|██████████| 52.3M/52.3M [00:00<00:00, 63.2MB/s] Extracted files from ./files.zip to . sh: 1: !rm: not found /home/user/app/app.py:89: LangChainDeprecationWarning: Importing OpenAIEmbeddings from langchain.embeddings is deprecated. Please replace deprecated imports: >> from langchain.embeddings import OpenAIEmbeddings with new imports of: >> from langchain_community.embeddings import OpenAIEmbeddings You can use the langchain cli to **automatically** upgrade many imports. Please see documentation here <https://python.langchain.com/docs/versions/v0_2/> from langchain.embeddings import OpenAIEmbeddings /home/user/app/app.py:90: LangChainDeprecationWarning: Importing Chroma from langchain.vectorstores is deprecated. Please replace deprecated imports: >> from langchain.vectorstores import Chroma with new imports of: >> from langchain_community.vectorstores import Chroma You can use the langchain cli to **automatically** upgrade many imports. Please see documentation here <https://python.langchain.com/docs/versions/v0_2/> from langchain.vectorstores import Chroma Traceback (most recent call last): File "/home/user/app/app.py", line 99, in <module> os.environ["OPENAI_API_KEY"] = os.getenv("OPENAI_API_KEY") File "/usr/local/lib/python3.10/os.py", line 685, in __setitem__ value = self.encodevalue(value) File "/usr/local/lib/python3.10/os.py", line 757, in encode raise TypeError("str expected, not %s" % type(value).__name__) TypeError: str expected, not NoneType

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