Hello Brian,
Thanks for your question.
Try the following:
- Make sure that the function app is configured correctly. Check the .NET version and the worker runtime settings to ensure that they are set correctly.
- Check if the deployment package is correct. You can try to deploy the function app again and make sure that the deployment package is created correctly.
- Check if the function app is able to run locally. If the function app is running fine locally, then the issue might be with the deployment package.
- Check if the function app is able to run in Azure. If the function app is running fine in Azure, then the issue might be with the local environment. If none of the above steps work, you can try to delete the function app and recreate it. This will ensure that the function app is created with the correct settings and configuration
The above was referenced from: https://learn.microsoft.com/en-us/answers/questions/1658082/net-8-dotnet-isolated-runtime-starup-errors-for-fu where the issue was resolved.
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola