Web Api Core 在 Visual Studio 2017 中的 IIS Express 上启动时挂起？

Question

I just updated Visual Studio to final version of 2017.
I'm working on a WebApi core project.

Whenever I start it with IIS Express, Google Chrome comes up and stay on loading in the following page without any responses

What's wrong with it?
The problem on github

Answer 1

Enabling IISExpress on WebApi Core:

1. Enabling the IISIntegration components:
Install Microsoft.AspNetCore.Server.IISIntegration package.

2. Edit Program.cs in root of project:

 var host = new WebHostBuilder()
    .UseKestrel()
    .UseContentRoot(Directory.GetCurrentDirectory())
    .UseIISIntegration() // Add this line
    .UseStartup<Startup>()
    .Build();

Answer 2

This has been fixed by download the latest Visual Studio 2017 installer again then install with modify mode. They have some update just today.

Step 1 Step 2

Answer 3

i had to disable javascript debugging to get it to work. under options>debugging> uncheck Enable javascript for ASP.NET(Chrome and IE)

Answer 4

I know this is old, but I came across this error in VS 2019: netcoreapp3.1

The correct way to build the web host is adding to the DefaultBuilder

return WebHost.CreateDefaultBuilder(args)
  .UseStartup<Startup>()
  .Build();

But if you want to do this manually you must UseIIS() in addition to UseIISIntegration()

      return new WebHostBuilder()
            .UseKestrel()
            .UseContentRoot(Directory.GetCurrentDirectory())
            .ConfigureAppConfiguration(YourAppConfigurationMethod)
            .UseIIS()
            .UseIISIntegration()
            .UseStartup<Startup>()
            .Build();