Web Api Core hangs when start it on IIS Express in Visual Studio 2017?

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();