ASP.NET Core 2.0 Value cannot be null. Parameter name: Name

I'm trying to host a ASP.NET Core 2.0 WebApplication in local IIS, but evertime i get the following error: Value cannot be null. Parameter name: name

The launchSettings.json file looks like this:

{
"iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iis": {
        "applicationUrl": "http://localhost/zoyotravel",
        "sslPort": 0
    },
    "iisExpress": {
        "applicationUrl": "http://localhost:56472/",
        "sslPort": 0
    }
},
"profiles": {
    "IIS Express": {
        "commandName": "IISExpress",
        "launchBrowser": true,
        "environmentVariables": {
            "ASPNETCORE_ENVIRONMENT": "Development"
        }
    },
    "Zoyo Travel": {
        "commandName": "IIS",
        "launchBrowser": true,
        "environmentVariables": {
            "ASPNETCORE_ENVIRONMENT": "Development"
        },
        "applicationUrl": "http://localhost:56473/"
    }
}
}

The program class looks liks this:

public class Program
{
    public static void Main(string[] args)
    {
        BuildWebHost(args).Run();
    }

    public static IWebHost BuildWebHost(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .UseStartup<Startup>()
            .Build();
}

The startup class looks like this:

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

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseWebpackDevMiddleware(new WebpackDevMiddlewareOptions
            {
                HotModuleReplacement = true
            });
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");
        }

        app.UseStaticFiles();

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

            routes.MapSpaFallbackRoute(
                name: "spa-fallback",
                defaults: new { controller = "Home", action = "Index" });
        });
    }
}

What have I tried so far?

• I have searched for all the parameters called "name" in the solution. But I could not find anything that could be empty.
• If I host the website in IIS express then it works.

The problem does not appear to be in the code. It is also a standard asp.net core 2.0 web application. I did not touch the code itself. I have only tried to host the website in IIS.

Can somebody help me?