提供了无效的请求URI。 （堆栈跟踪中没有有用的信息）

Question

Pulling my hair out here. All was working fine, and then out of the blue, I started to get some errors around Microsoft.Owin.Security . Following some tips on this site, I un-installed that package and all the ones that depended on it (there were a lot) and then re-installed them all.

Now when I run the site in debug, I get this:

An invalid request URI was provided. The request URI must either be an absolute URI or BaseAddress must be set.

What's frustrating is that nowhere in the stack trace is there anything that I can make any sense of. I'll paste it all below.

.NET 4.7.1 Web Application in Visual Studio 2017

Any tips on how to troubleshoot would be helpful. I've already deleted the entire solution and re-pulled it from TFS. Teammates using the same source code are not seeing this.

EDIT:

The only place I am able to hit a breakpoint is on the constructor in the index controller. That constructor is empty. The breakpoint hits, and then even if I step in debug, the next thing that happens is the error is thrown. It would be nice if I could nail down exactly where/what is causing the error, but I'm having trouble even with that.

Stack Trace: 


[InvalidOperationException: An invalid request URI was provided. The request URI must either be an absolute URI or BaseAddress must be set.]
   System.Net.Http.HttpClient.PrepareRequestMessage(HttpRequestMessage request) +335995
   System.Net.Http.HttpClient.SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken) +99
   System.Net.Http.HttpClient.GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken) +65
   Microsoft.IdentityModel.Protocols.<GetDocumentAsync>d__8.MoveNext() +196

[IOException: IDX20804: Unable to retrieve document from: '[PII is hidden]'.]
   Microsoft.IdentityModel.Protocols.<GetDocumentAsync>d__8.MoveNext() +662
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.IdentityModel.Protocols.OpenIdConnect.<GetAsync>d__3.MoveNext() +291
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) +25
   Microsoft.IdentityModel.Protocols.<GetConfigurationAsync>d__24.MoveNext() +1129

[InvalidOperationException: IDX20803: Unable to obtain configuration from: '[PII is hidden]'.]
   Microsoft.IdentityModel.Protocols.<GetConfigurationAsync>d__24.MoveNext() +1586
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.OpenIdConnect.<ApplyResponseChallengeAsync>d__8.MoveNext() +432
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.Infrastructure.<ApplyResponseCoreAsync>d__40.MoveNext() +272
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.Infrastructure.<ApplyResponseAsync>d__39.MoveNext() +271
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.Infrastructure.<TeardownAsync>d__34.MoveNext() +158
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.Infrastructure.<Invoke>d__5.MoveNext() +659
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.<RunApp>d__7.MoveNext() +179
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.Infrastructure.<Invoke>d__5.MoveNext() +519
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Security.Infrastructure.<Invoke>d__5.MoveNext() +519
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.<RunApp>d__7.MoveNext() +179
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +99
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.<DoFinalWork>d__12.MoveNext() +180
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult ar) +69
   Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.EndFinalWork(IAsyncResult ar) +64
   System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +380
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +48
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +159

Answer 1

In order to log additional details of PII related exceptions, try setting ShowPII = true in Configure method in Startup class like

Microsoft.IdentityModel.Logging.IdentityModelEventSource.ShowPII = true;

This should log additional details to the output window.

Answer 2

Please check this thread , and this thread . I believe you need to take care of the "Unable to obtain configuration from" exception, hope these'll help. :)

Answer 3

I spend two days on this. The problem was incorrect Authority URL. Check the Authority URL you have set in Azure and your application if is the same.

Hope this help someone.