runtime error

ite-packages/streamlit/runtime/state/session_state.py", line 421, in _getitem raise KeyError KeyError During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/user/.local/lib/python3.10/site-packages/streamlit/runtime/state/session_state_proxy.py", line 119, in __getattr__ return self[key] File "/home/user/.local/lib/python3.10/site-packages/streamlit/runtime/state/session_state_proxy.py", line 90, in __getitem__ return get_session_state()[key] File "/home/user/.local/lib/python3.10/site-packages/streamlit/runtime/state/safe_session_state.py", line 113, in __getitem__ return self._state[key] File "/home/user/.local/lib/python3.10/site-packages/streamlit/runtime/state/session_state.py", line 378, in __getitem__ raise KeyError(_missing_key_error_message(key)) KeyError: 'st.session_state has no key "_components_callbacks". Did you forget to initialize it? More info: https://docs.streamlit.io/library/advanced-features/session-state#initialization' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/user/app/app.py", line 118, in <module> webrtc_streamer(key="sign-language-detector", video_transformer_factory=VideoTransformer) File "/home/user/.local/lib/python3.10/site-packages/streamlit_webrtc/component.py", line 482, in webrtc_streamer register_callback(element_key=frontend_key, callback=callback) File "/home/user/.local/lib/python3.10/site-packages/streamlit_webrtc/components_callbacks.py", line 64, in register_callback _state._components_callbacks[element_key] = ( File "/home/user/.local/lib/python3.10/site-packages/streamlit/runtime/state/session_state_proxy.py", line 121, in __getattr__ raise AttributeError(_missing_attr_error_message(key)) AttributeError: st.session_state has no attribute "_components_callbacks". Did you forget to initialize it? More info: https://docs.streamlit.io/library/advanced-features/session-state#initialization

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