ASPNETCORE Serilog : Failed invoking event handler: System.ObjectDisposedException: IFeatureCollection has been disposed.

Please mark the type framework used:

• ASP.NET MVC
• ASP.NET Web API (OWIN)
• ASP.NET Core
• WPF
• WinForms
• Xamarin
• Other:

Please mark the type of the runtime used:

• .NET Framework
• Mono
• .NET Core

• Version: netcoreapp3.1

Please mark the NuGet packages used:

• Sentry
• Sentry.Serilog
• Sentry.NLog
• Sentry.Log4Net
• Sentry.Extensions.Logging
• Sentry.AspNetCore

• Version: 2.1.8

I’m running a small process with Sentry / Serilog and it seems to work fine other that the fact that I get this error in my message breadcrumbs:

Failed invoking event handler: System.ObjectDisposedException: IFeatureCollection has been disposed. 
Object name: 'Collection'.
    at Microsoft.AspNetCore.Http.Features.FeatureReferences`1.ThrowContextDisposed()
    at Microsoft.AspNetCore.Http.Features.FeatureReferences`1.ContextDisposed()
    at Microsoft.AspNetCore.Http.Features.FeatureReferences`1.Fetch[TFeature](TFeature& cached, Func`2 factory)
    at Microsoft.AspNetCore.Http.DefaultHttpContext.get_TraceIdentifier()
    at Sentry.AspNetCore.ScopeExtensions.Populate(Scope scope, HttpContext context, SentryAspNetCoreOptions options)
    at Sentry.AspNetCore.SentryMiddleware.PopulateScope(HttpContext context, Scope scope)
    at Sentry.AspNetCore.SentryMiddleware.<>c__DisplayClass8_1.<InvokeAsync>b__3(Object _, EventArgs __)
    at Sentry.Scope.Evaluate()

Below is the code I use to build the WebHost:

return WebHost.CreateDefaultBuilder()
                .UseShutdownTimeout(TimeSpan.FromSeconds(SHUTDOWN_TIMEOUT_IN_SECONDS))
                .UseConfiguration(configuration)
                .UseUrls($"http://*:{parameters.PrivatePort}")
                .PreferHostingUrls(true) // Make sure the WebHostBuilder uses the URLs set in UseUrls() instead of the Kestrel ones
                .ConfigureServices((hostBuilder, services) =>
                {
                    services.Configure<HostOptions>(o => o.ShutdownTimeout = TimeSpan.FromSeconds(SHUTDOWN_TIMEOUT_IN_SECONDS));
                    services.AddSingleton(childProcess);
                    services.AddSingleton(metricsHandler);
                })
                .UseStartup<ChildStartup>()
                .UseSerilog()
                .UseSentry(o =>
                {
                    o.Environment = parameters.Environment;
                })

And the relevant configuration is here:

  "Sentry": {
    "Dsn": "MYDSN",
    "AttachStackTrace": true
  },
  "Serilog": {
    "Properties": {
      "source_agent": "SomonGameChild"
    },
    "WriteTo": [
      {
        "Name": "Sentry",
        "Args": {
          "MinimumBreadcrumbLevel": "Debug",
          "MinimumEventLevel": "Warning"
        }
      }
    ]
  }

Any help is appreciated. Let me know if you need more information.

[madzaf]

Just as a final comment I got sourcelink to work and I think what happens is what I kind of suspected, my background service logs a warning, and the sdk tries to recover a spent http request when that warning occurs but the request is already over. I’ve added the breadcrumb removal and it works perfectly. Thanks for all the help.

[madzaf]

Ah I didn’t know about sourcelink ! I’ll look into it and try to see exactly when this happens. Thank you for the breadcrumb removal tip, it should be a good workaround in the mean time. I’ll post more here if I get more information by debbugging