Hi John Hancock,
Thanks for posting your question in the Microsoft Q&A forum.
This error typically happens due to a mismatch between the Python interpreter architecture (32-bit or 64-bit) and the operating system architecture, or because the Python version being used is not supported by the Azure Functions Python Worker
- Ensure that you are using a 64-bit Python interpreter on a 64-bit operating system
py -c 'import platform; print(platform.architecture())'
- The Azure Functions Python Worker supports specific Python versions. Currently, the supported versions are 3.6, 3.7, 3.8, and 3.9. Ensure that you are using one of these versions by running
py --version
- Try reinstalling the gRPC library by running the following command:
python -m pip install grpcio --upgrade
Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful