Exception During File Upload with Aspire After First Run

[KevinValmo]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

I'm developing an API that receives files and I've started integrating it with Aspire. During the first run, file uploads to the API endpoint work correctly. However, starting from the second run, an exception occurs, which I found in the Windows Event Viewer, causing the program to forcibly close.

I use swagger for testing. In the first run all goes ok, in the second run, just after closing the upload file window (from swagger) the app crashes.

As you can see from the stack trace, the error seems to occur within the Dashboard WatchResourcesAsync method.

Stack Trace:

Category: Aspire.Dashboard.Model.DashboardClient
EventId: 0
SpanId: ab514490f240dace
TraceId: 61d978afab3ea0b9b678d9a2f50f6e75
ParentId: 0000000000000000
ConnectionId: 0HNBDG512JBJE
RequestId: 0HNBDG512JBJE:00000019
RequestPath: /_blazor
TransportConnectionId: CUEtHBUYoHZ1_HCntBGr7Q

Error #1 watching resources.

Exception: 
Grpc.Core.RpcException: Status(StatusCode="Unavailable", Detail="Error reading next message. IOException: The request was aborted. IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.. SocketException: An existing connection was forcibly closed by the remote host.", DebugException="System.IO.IOException: The request was aborted.")
 ---> System.IO.IOException: The request was aborted.
 ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host..
 ---> System.Net.Sockets.SocketException (10054): An existing connection was forcibly closed by the remote host.
   --- End of inner exception stack trace ---
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource<System.Int32>.GetResult(Int16 token)
   at Grpc.Net.Client.Balancer.Internal.StreamWrapper.ReadAsync(Memory`1 buffer, CancellationToken cancellationToken)
   at System.Net.Security.SslStream.EnsureFullTlsFrameAsync[TIOAdapter](CancellationToken cancellationToken, Int32 estimatedSize)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)
   at System.Net.Security.SslStream.ReadAsyncInternal[TIOAdapter](Memory`1 buffer, CancellationToken cancellationToken)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)
   at System.Net.Http.Http2Connection.ProcessIncomingFramesAsync()
   --- End of inner exception stack trace ---
   at System.Net.Http.Http2Connection.ThrowRequestAborted(Exception innerException)
   at System.Net.Http.Http2Connection.Http2Stream.CheckResponseBodyState()
   at System.Net.Http.Http2Connection.Http2Stream.TryReadFromBuffer(Span`1 buffer, Boolean partOfSyncRead)
   at System.Net.Http.Http2Connection.Http2Stream.ReadDataAsync(Memory`1 buffer, HttpResponseMessage responseMessage, CancellationToken cancellationToken)
   at Grpc.Net.Client.Internal.StreamExtensions.ReadMessageAsync[TResponse](Stream responseStream, GrpcCall call, Func`2 deserializer, String grpcEncoding, Boolean singleMessage, CancellationToken cancellationToken)
   at Grpc.Net.Client.Internal.GrpcCall`2.ReadMessageAsync(Stream responseStream, String grpcEncoding, Boolean singleMessage, CancellationToken cancellationToken)
   at Grpc.Net.Client.Internal.HttpContentClientStreamReader`2.MoveNextCore(CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at Grpc.Net.Client.Internal.HttpContentClientStreamReader`2.MoveNextCore(CancellationToken cancellationToken)
   at Grpc.Net.Client.Internal.Retry.RetryCallBaseClientStreamReader`2.MoveNext(CancellationToken cancellationToken)
   at Grpc.Core.AsyncStreamReaderExtensions.ReadAllAsyncCore[T](IAsyncStreamReader`1 streamReader, CancellationToken cancellationToken)+MoveNext()
   at Grpc.Core.AsyncStreamReaderExtensions.ReadAllAsyncCore[T](IAsyncStreamReader`1 streamReader, CancellationToken cancellationToken)+System.Threading.Tasks.Sources.IValueTaskSource<System.Boolean>.GetResult()
   at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass30_1.<<EnsureInitialized>g__WatchResourcesAsync|5>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 325
--- End of stack trace from previous location ---
   at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass30_1.<<EnsureInitialized>g__WatchResourcesAsync|5>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 325
--- End of stack trace from previous location ---
   at Aspire.Dashboard.Model.DashboardClient.<>c__DisplayClass30_0.<<EnsureInitialized>g__WatchResourcesWithRecoveryAsync|3>d.MoveNext() in /_/src/Aspire.Dashboard/ResourceService/DashboardClient.cs:line 300

Expected Behavior

File uploads should work correctly on every application run, even when integrated with Aspire.

Steps To Reproduce

This is the repo with a simple endpoint /upload

https://github.com/KevinValmo/UploadFileCrashApp

Exceptions (if any)

Run the Aspire application integrated with the file upload API.
Upload a file through the API endpoint (works).
Attempt a second file upload (exception occurs).

.NET Version info

.NET SDK:
Version: 9.0.201
Commit: 071aaccdc2
Workload version: 9.0.200-manifests.a3a1a094
MSBuild version: 17.13.13+1c2026462

Runtime Environment:
OS Name: Windows
OS Version: 10.0.22631
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.201\

.NET workloads installed:
[maui-windows]
Installation Source: VS 17.13.35913.81
Manifest Version: 9.0.14/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.maui\9.0.14\WorkloadManifest.json
Install Type: Msi

[android]
Installation Source: VS 17.13.35913.81
Manifest Version: 35.0.39/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.android\35.0.39\WorkloadManifest.json
Install Type: Msi

[maccatalyst]
Installation Source: VS 17.13.35913.81
Manifest Version: 18.2.9180/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.maccatalyst\18.2.9180\WorkloadManifest.json
Install Type: Msi

[ios]
Installation Source: VS 17.13.35913.81
Manifest Version: 18.2.9180/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.ios\18.2.9180\WorkloadManifest.json
Install Type: Msi

[aspire]
Installation Source: VS 17.13.35913.81, VS 17.14.35806.103
Manifest Version: 8.2.2/8.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\8.0.100\microsoft.net.sdk.aspire\8.2.2\WorkloadManifest.json
Install Type: Msi

Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.3
Architecture: x64
Commit: 831d23e561

.NET SDKs installed:
9.0.200 [C:\Program Files\dotnet\sdk]
9.0.201 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.13 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.14 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.13 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.14 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.13 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.14 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

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Anything else?

OS Name: Microsoft Windows 11 Pro
OS Version: 10.0.22631 N/A Build 22631
System Locale: en-us;English (United States)
Input Locale: it;Italian (Italy)
Total Physical Memory: 31,894 MB