While working on my project to run the Streamlit app, I got this error

The error message ModuleNotFoundError: No module named 'google' suggests that the required Google Protocol Buffers (protobuf) package is not installed or not correctly set up in your Python environment. This package is essential for Streamlit as it uses protobufs to manage communication between the front and back end.

Here’s how to resolve this issue:

Step 1: Install Google Protocol Buffers

First, you need to install the protobuf package. Since you are using Anaconda, it’s best to use the Conda package manager, which handles dependencies more smoothly within Conda environments.

Using Conda:

conda install -c anaconda protobuf

Using pip: If for some reason you prefer or need to use pip:

bashCopy codepip install protobuf

Step 2: Verify the Installation

After installing, you can verify that the protobuf library is installed by trying to import it:

bashCopy codepython -c "import google.protobuf"

If this command does not throw an error, the library is installed correctly.

Step 3: Retry Running Streamlit

Once the protobuf library is installed, try running your Streamlit application again:

bashCopy codestreamlit run quickstart.py

Step 4: Check for Other Missing Dependencies

If you encounter further ModuleNotFoundError issues, it might indicate other missing dependencies. Install each as required using Conda or pip, similar to how you installed protobuf.

Step 5: Use a Virtual Environment (Optional)

If these problems persist, consider setting up a new Python virtual environment specifically for your project to avoid conflicts with other packages in your main Anaconda environment:

bashCopy codeconda create -n newenv python=3.9  # Create a new environment
conda activate newenv  # Activate the new environment
conda install -c anaconda protobuf streamlit  # Install necessary packages
streamlit run quickstart.py  # Run your Streamlit app

Step 6: Ensure Correct Python Path

Ensure that when you run the Streamlit command, it is being executed in the correct Python environment where all necessary packages are installed. Sometimes, scripts might be executed with a different interpreter unintentionally. You can specify the Python interpreter directly:

bashCopy code/path/to/env/bin/streamlit run quickstart.py

Replace /path/to/env/bin/streamlit with the actual path to the Streamlit executable in your environment.

By following these steps, you should be able to resolve the ModuleNotFoundError and successfully run your Streamlit application.