Streamlit run with protobuf error

whitphx · May 26, 2022, 5:58am

I encountered the same problem and avoided it by installing the compatible version of protobuf:


pip install 'protobuf~=3.19.0'

To deploy it on Streamlit Cloud, I added a line to requirements.txt:

github.com

whitphx/streamlit-webrtc-example/blob/ce881ebc31b0286dfa65a46934033305140024af/requirements.txt#L9

      
        
            aiortc==1.3.2
            matplotlib==3.5.1
            numpy==1.22.3
            opencv-python-headless==4.5.5.64
            pydub==0.25.1
            streamlit==1.9.0
            streamlit_webrtc==0.37.0
            typing_extensions==4.1.1
            protobuf~=3.19.0

For core dev team:

This is because the version of protobuf as a dependency of the streamlit package is specified as protobuf = ">=3.6.0, !=3.11", which allows installing major version-ups that may have breaking changes.

github.com

streamlit/streamlit/blob/6720f1726e3741b90dc5a5f7ecbf247ccf5bf88f/lib/Pipfile#L48

      
        
            blinker = "*"
            cachetools = ">=4.0"
            click = ">=7.0"
            # 1.4 introduced the functionality found in python 3.8's importlib.metadata module
            importlib-metadata = ">=1.4"
            numpy = "*"
            packaging = "*"
            pandas = ">=0.21.0"
            pillow = ">=6.2.0"
            # protobuf version 3.11 is incompatible, see https://github.com/streamlit/streamlit/issues/2234
            protobuf = ">=3.6.0, !=3.11"
            pyarrow = "*"
            pydeck = ">=0.1.dev5"
            pympler = ">=0.9"
            python-dateutil = "*"
            requests = "*"
            toml = "*"
            # 5.0 has a fix for etag header: https://github.com/tornadoweb/tornado/issues/2262
            tornado = ">=5.0"
            tzlocal = "*"
            validators = "*"

And it actually led to install a new version 4.21.0, which was released 5 hours ago with breaking changes, as described in the page linked from the error message:

The version specification in Pipfile should be something like protobuf = "~=3.19.0.
→ Set protobuf verion as ~=3.19.0 by whitphx · Pull Request #4779 · streamlit/streamlit · GitHub

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Streamlit run with protobuf error

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