CODEWITHSUNDEEP
c#iisasp.net-core.net-core
Ramy Mohammad
Ramy Mohammad

Reputation: 3

Error on starting .NET Core Web API on IIS: "Application is running inside IIS process but is not configured to use IIS server"

I have published .NET Core 2.2 API to IIS v.10 and for some reason it responds 500!

I tried

I would appreciate your advice. Thanks

public static void Main(string[] args)
{
    CreateWebHostBuilder(args).Build().Run();
}

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .UseStartup<Startup>();

launchSettings.json file: 

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:5694",
      "sslPort": 0
    }
  },
  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "x": {
      "commandName": "Project",
      "applicationUrl": "http://localhost:5694",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

Startup: 

public Startup(IConfiguration configuration, ILoggerFactory loggerFactory)
{
    NLog.LogManager.LoadConfiguration(String.Concat(Directory.GetCurrentDirectory(), "/nlog.config"));
    Configuration = configuration;
}

public IConfiguration Configuration { get; }

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
}

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

    app.UseCors("CorsPolicy");
    app.UseMvc();
}

I have reinstalled the .NET Core bundle and I got this from stdout:

Application startup exception: System.InvalidOperationException: Application is running inside IIS process but is not configured to use IIS server.
   at Microsoft.AspNetCore.Server.IIS.Core.IISServerSetupFilter.<>c__DisplayClass2_0.<Configure>b__0(IApplicationBuilder app)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.BuildApplication()
crit: Microsoft.AspNetCore.Hosting.Internal.WebHost[6]
      Application startup exception
System.InvalidOperationException: Application is running inside IIS process but is not configured to use IIS server.
   at Microsoft.AspNetCore.Server.IIS.Core.IISServerSetupFilter.<>c__DisplayClass2_0.<Configure>b__0(IApplicationBuilder app)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.BuildApplication()
dbug: Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer[2]
      Failed to locate the development https certificate at '(null)'.
dbug: Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer[1]
      Unable to locate an appropriate development https certificate.
dbug: Microsoft.AspNetCore.Server.Kestrel[0]
      No listening endpoints were configured. Binding to http://localhost:5000 by default.
Hosting environment: Production
Content root path: C:\inetpub\wwwroot\VetWorkAdmin
dbug: Microsoft.AspNetCore.Hosting.Internal.WebHost[4]
      Hosting started
dbugNow listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.
: Microsoft.AspNetCore.Hosting.Internal.WebHost[0]
      Loaded hosting startup assembly VetWork.Admin
dbug: Microsoft.AspNetCore.Hosting.Internal.WebHost[0]
      Loaded hosting startup assembly Microsoft.AspNetCore.Server.IISIntegration

Upvotes: 0

Views: 12504

Answers (3)

VLR
VLR

Reputation: 1

if (Environment.GetEnvironmentVariable("APP_POOL_ID") is not null)
{
    builder.WebHost.UseIIS();
}

Upvotes: 0

Marcin Pluta
Marcin Pluta

Reputation: 81

If Your'e experiencing thiss use when hosting app as an Azure App Service

Add this:

<AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>

under

<TargetFramework>netcoreapp3.1</TargetFramework>

inside your host *.csproj file.

Upvotes: 6

Dmitry Pavlov
Dmitry Pavlov

Reputation: 28290

Try this: 

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
                .UseContentRoot(Directory.GetCurrentDirectory())
                .UseIISIntegration()
                .UseStartup<Startup>();

For InProcess it uses IISHttpServer. Check Host your ASP.NET Core 2.2 Web App with IIS (in-process and out-of-process hosting model) and deploy to Docker Windows Containers explaining the details.

Upvotes: 1

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