As always, sharing is caring – so here you go.
Today – after publishing to Azure – ran the default “Register” user page – and got the error message…
Swapping to Development environment will display more detailed information about the error that occurred.
Development environment should not be enabled in deployed applications, as it can result in sensitive information from exceptions being displayed to end users. For local debugging, development environment can be enabled by setting the ASPNETCORE_ENVIRONMENT environment variable to Development, and restarting the application.
So click on your Web App –> Applications Settings –> go down to the “App Settings” section and add the “ASPNETCORE_ENVIRONMENT” and “Development” as displayed in the screen shot.
Now you’ll get the error messages as if you were running it locally – and that should help you resolve your issues.
REMEMBER – before you go to use this in production – revert that change. Don’t want the bad guys to be able to see any error details.