sudden issue with webpack middleware #1056

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fergalmoran · 2025-08-09T17:18:42Z

fergalmoran commented

2025-08-09 17:18:42 +00:00

Originally created by @ghost on 2/3/2017

webpack dev middleware was working perfectly fine, then I restarted my app and it stopped working.
Instead of webpack bundling the app like it usually does, I don't see any webpack building in the aspnetcore app log

I'm getting an error like this:

Hosting environment: Development
Content root path: C:\Users\nt\Documents\GitHub\PenguinUpload\PenguinUpload\src\PenguinUpload
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
      Request starting HTTP/1.1 GET http://localhost:5000/
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
      Executing action method PenguinUpload.Controllers.HomeController.Index (PenguinUpload) with arguments ((null)) - ModelState is Valid
info: Microsoft.AspNetCore.Mvc.ViewFeatures.Internal.ViewResultExecutor[1]
      Executing ViewResult, running view at path /Views/Home/Index.cshtml.
info: Microsoft.Extensions.DependencyInjection.DataProtectionServices[0]
      User profile is available. Using 'C:\Users\nt\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
      Executed action PenguinUpload.Controllers.HomeController.Index (PenguinUpload) in 8240.4814ms
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
      Request finished in 10604.5133ms 200 text/html; charset=utf-8
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
      Request starting HTTP/1.1 GET http://localhost:5000/dist/main.js?v=c5udZk132z7jyrQHN8Y4b7e2754AsxpDT9doDmlIK6A
fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[0]
      An unhandled exception has occurred while executing the request
System.Threading.Tasks.TaskCanceledException: A task was canceled.
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at System.Net.Http.HttpClient.<FinishSendAsync>d__58.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.<PerformProxyRequest>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.<Invoke>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext()
info: Microsoft.AspNetCore.Server.Kestrel[14]
      Connection id "0HL2BUP9JMSV2" communication error.
Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.UvException: Error -4081 ECANCELED operation canceled
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
      Request finished in 102077.807ms 500 text/html; charset=utf-8
info: Microsoft.AspNetCore.Server.Kestrel[14]
      Connection id "0HL2BUP9JMSV2" communication error.
Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.UvException: Error -4081 ECANCELED operation canceled

the full current source to the application that is producing the error can be found here: https://github.com/0xFireball/PenguinUpload/tree/dirstructure (this is in the dirstructure branch)

If relevant, I'm using

Node 7.5.0
dotnet 1.0.0-preview2-1-003177
at the time of posting, the latest version of all dependencies of my project

*Originally created by @ghost on 2/3/2017* webpack dev middleware was working perfectly fine, then I restarted my app and it stopped working. Instead of webpack bundling the app like it usually does, I don't see any `webpack building` in the aspnetcore app log I'm getting an error like this: ``` Hosting environment: Development Content root path: C:\Users\nt\Documents\GitHub\PenguinUpload\PenguinUpload\src\PenguinUpload Now listening on: http://localhost:5000 Application started. Press Ctrl+C to shut down. info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1] Request starting HTTP/1.1 GET http://localhost:5000/ info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1] Executing action method PenguinUpload.Controllers.HomeController.Index (PenguinUpload) with arguments ((null)) - ModelState is Valid info: Microsoft.AspNetCore.Mvc.ViewFeatures.Internal.ViewResultExecutor[1] Executing ViewResult, running view at path /Views/Home/Index.cshtml. info: Microsoft.Extensions.DependencyInjection.DataProtectionServices[0] User profile is available. Using 'C:\Users\nt\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest. info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2] Executed action PenguinUpload.Controllers.HomeController.Index (PenguinUpload) in 8240.4814ms info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2] Request finished in 10604.5133ms 200 text/html; charset=utf-8 info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1] Request starting HTTP/1.1 GET http://localhost:5000/dist/main.js?v=c5udZk132z7jyrQHN8Y4b7e2754AsxpDT9doDmlIK6A fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[0] An unhandled exception has occurred while executing the request System.Threading.Tasks.TaskCanceledException: A task was canceled. at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult() at System.Net.Http.HttpClient.<FinishSendAsync>d__58.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.<PerformProxyRequest>d__6.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.AspNetCore.SpaServices.Webpack.ConditionalProxyMiddleware.<Invoke>d__5.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext() info: Microsoft.AspNetCore.Server.Kestrel[14] Connection id "0HL2BUP9JMSV2" communication error. Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.UvException: Error -4081 ECANCELED operation canceled info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2] Request finished in 102077.807ms 500 text/html; charset=utf-8 info: Microsoft.AspNetCore.Server.Kestrel[14] Connection id "0HL2BUP9JMSV2" communication error. Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.UvException: Error -4081 ECANCELED operation canceled ``` the full current source to the application that is producing the error can be found here: <https://github.com/0xFireball/PenguinUpload/tree/dirstructure> (this is in the `dirstructure` branch) If relevant, I'm using - Node 7.5.0 - dotnet `1.0.0-preview2-1-003177` - at the time of posting, the latest version of all dependencies of my project

fergalmoran closed this issue

2025-08-09 17:18:42 +00:00

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Reference: github/JavaScriptServices#1056