Asp.net core 2.2 variable ASPNETCORE_ENVIRONMENT not working on Azure

Question

I am trying to find out what the problem is with my application but I always get the following error page:

I tried adding to azure the ASPNETCORE_ENVIRONMENT variable, and then restarted, but it still does not work. Am I missing smth?

Jack Jia · Accepted Answer · 2019-10-30 07:23:40Z

1

I tested at my side, and the app environment was changed to development:

Then, for testing, I just throw a Exception in my code, and I will see the detailed error page:

So, I have some suggestions:

1. Check if you have saved the application settings on Azure portal. And restart the web app.

2. You can force to use development environment in startup.cs

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    //if (env.IsDevelopment())
    //{
    //  app.UseDeveloperExceptionPage();
    //}

    // Force to use development environment
    app.UseDeveloperExceptionPage();

    ...
}

And then re-publish it to you web app.

3. You can use remote debugging. Here is a tutorial: Troubleshoot an app in Azure App Service using Visual Studio

answered Oct 30, 2019 at 7:23

Jack Jia

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Asp.net core 2.2 variable ASPNETCORE_ENVIRONMENT not working on Azure

1 Answer 1

1. Check if you have saved the application settings on Azure portal. And restart the web app.

2. You can force to use development environment in startup.cs

3. You can use remote debugging. Here is a tutorial: Troubleshoot an app in Azure App Service using Visual Studio

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Collectives™ on Stack Overflow

1 Answer 1

1. Check if you have saved the application settings on Azure portal. And restart the web app.

2. You can force to use development environment in startup.cs

3. You can use remote debugging. Here is a tutorial: Troubleshoot an app in Azure App Service using Visual Studio

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