HTTP Error 500: localhost cannot handle this request at this time

Question

I encountered a 500 HTPP error and I am not sure why. When I start my service, I open the Chrome browser and go to http://localhost:5000, and an error appears. The Chrome Developer Tools window displays this single error:

Failed to load resource: the server responded with a status of 500 (Internal Server Error) http://localhost:5000/

Here is my Startup.cs file (excluding the use of operators for simplicity):

namespace Tuner
{
    public class Startup
    {
        public static void Main(string[] args)
        {
            var exePath = Process.GetCurrentProcess().MainModule.FileName;
            var directoryPath = Path.GetDirectoryName(exePath);

                                var host = new WebHostBuilder()
               .CaptureStartupErrors(true)
               .UseKestrel()
               .UseUrls("http://localhost:5000")
               .UseContentRoot(Directory.GetCurrentDirectory())
               .UseIISIntegration()
               .UseStartup<Startup>()
               .Build();
            host.Run();
        }


        public Startup(IHostingEnvironment env)
        {
            //Setup Logger
            Log.Logger = new LoggerConfiguration()
                .WriteTo.Trace()
                .MinimumLevel.Debug()
                .CreateLogger();
            // Set up configuration sources.
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json");
            //.AddEnvironmentVariables();
            Configuration = builder.Build();
        }

        public IConfigurationRoot Configuration { get; set; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSwaggerGen();

            services.AddMvc().AddJsonOptions(options =>
            {
                options.SerializerSettings.ContractResolver =
                    new CamelCasePropertyNamesContractResolver();
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, IApplicationLifetime lifetime)
        {

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
            }

            app.UseStaticFiles();

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}");
            });


            lifetime.ApplicationStopping.Register(() =>
            {
                Log.Debug("Application Stopping. Do stuff.");
            });
        }
    }
}

With MVC, this calls the HomeController Index method call:

namespace Tuner.Controllers
{
    public class HomeController : Controller
    {
        public string appVersion = typeof(HomeController).Assembly.GetName().Version.ToString();
        public string appName = "Empty Web App";

        [HttpGet("/")]
        public IActionResult Index()
        {
            var url = Request.Path.Value;
            if (url.EndsWith(".ico") || url.EndsWith(".map"))
            {
                return new StatusCodeResult(404);
            }
            else
            {
                // else block is reached
                return View("~/Views/Home/Index.cshtml");
            }
        }

        public IActionResult Error()
        {
            return View("~/Views/Shared/Error.cshtml");
        }

        [HttpGetAttribute("app/version")]
        public string Version()
        {
            return appVersion;

        }

        [HttpGetAttribute("app/name")]
        public string ProjectName()
        {
            return appName;
        }
    }
}

and here is my Index.cshtml file (which was placed in Views / Home):

@{
    ViewBag.Title = "Tuner";
}

@section pageHead {
}

@section scripts {
    <script src="~/vendor.bundle.js"></script> 
    <script src="~/main.bundle.js"></script>

}

<cache vary-by="@Context.Request.Path">
    <app>Loading content...</app>
</cache>

Answer 1

UseIISIntegration "" UseUrls, UseUrls Kestrel, IISExpress/IIS.

IIS, Properties/launchSettings.json - , IIS.

UseIISIntegration , Port 5000, Kestrel , , , IIS Nginx ..

. .

Answer 2

, , , ASP.NET!

Windows Server 2012 R2 / Windows:

• " ", " " " " .
• " " - (IIS) node .
• - node.
• Application Development node.
• ASP.NET 3.5 ASP.NET 4.5, .
• .

Answer 3

IIS ( , OP IIS), .NET Core Windows Server, , . (.. 500)