runtime error

Exit code: 1. Reason: Traceback (most recent call last): File "/app/app.py", line 4, in <module> from llama_index.core import SimpleDirectoryReader, VectorStoreIndex File "/usr/local/lib/python3.9/site-packages/llama_index/core/__init__.py", line 26, in <module> from llama_index.core.indices import ( File "/usr/local/lib/python3.9/site-packages/llama_index/core/indices/__init__.py", line 4, in <module> from llama_index.core.indices.composability.graph import ComposableGraph File "/usr/local/lib/python3.9/site-packages/llama_index/core/indices/composability/__init__.py", line 3, in <module> from llama_index.core.indices.composability.graph import ComposableGraph File "/usr/local/lib/python3.9/site-packages/llama_index/core/indices/composability/graph.py", line 7, in <module> from llama_index.core.indices.base import BaseIndex File "/usr/local/lib/python3.9/site-packages/llama_index/core/indices/base.py", line 8, in <module> from llama_index.core.base.base_retriever import BaseRetriever File "/usr/local/lib/python3.9/site-packages/llama_index/core/base/base_retriever.py", line 22, in <module> from llama_index.core.settings import Settings File "/usr/local/lib/python3.9/site-packages/llama_index/core/settings.py", line 8, in <module> from llama_index.core.indices.prompt_helper import PromptHelper File "/usr/local/lib/python3.9/site-packages/llama_index/core/indices/prompt_helper.py", line 314, in <module> class ChatPromptHelper(BaseComponent): File "/usr/local/lib/python3.9/site-packages/llama_index/core/indices/prompt_helper.py", line 558, in ChatPromptHelper llm: LLM | None = None, TypeError: unsupported operand type(s) for |: 'ModelMetaclass' and 'NoneType'

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