我正在使用实体框架核心执行复杂的异步数据库查询，如下所示:
Schedule schedule = await db.Schedules
.Include("Timetable.Class.Lecturers")
.Include("Timetable.Class.AdvancedClassSections.ClassSessions.Lecturers")
.Include("Timetable.Class.ClassSessions.Lecturers")
.Include("Timetable.Class.AdvancedClassSections.Lecturers")
.FirstOrDefaultAsync(k => k.ScheduleId == scheduleId);
但我一直收到一个运行时错误消息，上面写着:
System.InvalidOperationException:‘模型项传递到 视图数据字典的类型为 ‘System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[System.Collections.Generic.List`1[Emily.Models.Timetable]，Emily.Controllers.TimetableController+d__21]’， 但此ViewDataDictionary实例需要类型为 ‘System.Collections.Generic.IEnumerable`1[Emily.Models.Timetable]’.‘
似乎有一个低级操作，它应该从IEumable强制转换，但得到了更复杂的东西.当它不是异步的时候，它工作得很好.我还有其他类似的查询运行得很好，但我似乎不明白为什么这个查询会抛出异常.它与视图无关，因为这发生在控制器操作中.
完整调用堆栈:
Microsoft.AspNetCore.Mvc.ViewFeatures.dll!Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary.EnsureCompatible(object value) Line 212 C# Microsoft.AspNetCore.Mvc.ViewFeatures.dll!Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary.ViewDataDictionary(Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary source, object model, System.Type declaredModelType) Line 138 C# [Lightweight Function]
Microsoft.AspNetCore.Mvc.Razor.dll!Microsoft.AspNetCore.Mvc.Razor.RazorPagePropertyActivator.Activate(object page, Microsoft.AspNetCore.Mvc.Rendering.ViewContext context) Unknown Microsoft.AspNetCore.Mvc.Razor.dll!Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(Microsoft.AspNetCore.Mvc.Razor.IRazorPage page, Microsoft.AspNetCore.Mvc.Rendering.ViewContext context) Unknown Microsoft.AspNetCore.Mvc.Razor.dll!Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(Microsoft.AspNetCore.Mvc.Razor.IRazorPage page, Microsoft.AspNetCore.Mvc.Rendering.ViewContext context, bool invokeViewStarts) Unknown Microsoft.AspNetCore.Mvc.Razor.dll!Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(Microsoft.AspNetCore.Mvc.Rendering.ViewContext context) Unknown Microsoft.AspNetCore.Mvc.ViewFeatures.dll!Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(Microsoft.AspNetCore.Mvc.Rendering.ViewContext viewContext, string contentType, int? statusCode) Line 128 C# Microsoft.AspNetCore.Mvc.ViewFeatures.dll!Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(Microsoft.AspNetCore.Mvc.ActionContext actionContext, Microsoft.AspNetCore.Mvc.ViewEngines.IView view, Microsoft.AspNetCore.Mvc.ViewFeatures.ViewDataDictionary viewData, Microsoft.AspNetCore.Mvc.ViewFeatures.ITempDataDictionary tempData, string contentType, int? statusCode) Line 104 C# Microsoft.AspNetCore.Mvc.ViewFeatures.dll!Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor.ExecuteAsync(Microsoft.AspNetCore.Mvc.ActionContext context, Microsoft.AspNetCore.Mvc.ViewResult result) C# Microsoft.AspNetCore.Mvc.ViewFeatures.dll!Microsoft.AspNetCore.Mvc.ViewResult.ExecuteResultAsync(Microsoft.AspNetCore.Mvc.ActionContext context) Line 33 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<Microsoft.AspNetCore.Mvc.Filters.IResultFilter, Microsoft.AspNetCore.Mvc.Filters.IAsyncResultFilter>(ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.State next, ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Scope scope, ref object state, ref bool isCompleted) Line 1338 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeNextResultFilterAsync<Microsoft.AspNetCore.Mvc.Filters.IResultFilter, Microsoft.AspNetCore.Mvc.Filters.IAsyncResultFilter>() Line 1354 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<Microsoft.AspNetCore.Mvc.Filters.IResultFilter, Microsoft.AspNetCore.Mvc.Filters.IAsyncResultFilter>(ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.State next, ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Scope scope, ref object state, ref bool isCompleted) Line 1258 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters() Line 1090 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.State next, ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Scope scope, ref object state, ref bool isCompleted) Line 853 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeNextResourceFilter() Line 952 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.State next, ref Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Scope scope, ref object state, ref bool isCompleted) Line 557 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync() Line 232 C# Microsoft.AspNetCore.Mvc.Core.dll!Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeAsync() Line 70 C# Microsoft.AspNetCore.Routing.dll!Microsoft.AspNetCore.Routing.EndpointMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext httpContext) Line 87 C# Microsoft.AspNetCore.Session.dll!Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 123 C# Microsoft.AspNetCore.Authorization.Policy.dll!Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 75 C# Microsoft.AspNetCore.StaticFiles.dll!Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 75 C# Microsoft.AspNetCore.StaticFiles.dll!Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 75 C# Microsoft.AspNetCore.HttpsPolicy.dll!Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 74 C# Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.dll!Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.MigrationsEndPointMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 50 C# Microsoft.AspNetCore.Localization.dll!Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 95 C# Microsoft.AspNetCore.Authentication.dll!Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 65 C# Microsoft.AspNetCore.Diagnostics.dll!Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 80 C# Microsoft.AspNetCore.HostFiltering.dll!Microsoft.AspNetCore.HostFiltering.HostFilteringMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext context) Line 51 C# Microsoft.WebTools.BrowserLink.Net.dll!Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext context) Line 53 C# [Resuming Async Method]
System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Threading.Tasks.VoidTaskResult>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.d__6>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Threading.Tasks.VoidTaskResult>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.d__6>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Threading.Tasks.VoidTaskResult>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.d__6>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result) Line 446 C# [Completed] Microsoft.WebTools.BrowserLink.Net.dll!Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.GetScriptTag(string requestId, bool isHttps, string hostUrl) Line 83 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.d__7>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.d__7>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.d__7>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result) Line 446 C# [Completed] System.Net.Http.dll!System.Net.Http.HttpClient.SendAsync.__Core|83_0(System.Net.Http.HttpRequestMessage request, System.Net.Http.HttpCompletionOption completionOption, System.Threading.CancellationTokenSource cts, bool disposeCts, System.Threading.CancellationTokenSource pendingRequestsCts, System.Threading.CancellationToken originalCancellationToken) Unknown System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.HttpClient.<g__Core|83_0>d>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.HttpClient.<g__Core|83_0>d>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.HttpClient.<g__Core|83_0>d>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result) Line 446 C# [Completed] System.Net.Http.dll!System.Net.Http.RedirectHandler.SendAsync(System.Net.Http.HttpRequestMessage request, bool async, System.Threading.CancellationToken cancellationToken) Unknown System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.RedirectHandler.d__4>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.RedirectHandler.d__4>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.RedirectHandler.d__4>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result) Line 446 C# [Completed] System.Net.Http.dll!System.Net.Http.DiagnosticsHandler.SendAsyncCore(System.Net.Http.HttpRequestMessage request, bool async, System.Threading.CancellationToken cancellationToken) Unknown System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.DiagnosticsHandler.d__10>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.DiagnosticsHandler.d__10>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.DiagnosticsHandler.d__10>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result) Line 446 C# [Completed] System.Net.Http.dll!System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(System.Net.Http.HttpRequestMessage request, bool async, bool doRequestAuth, System.Threading.CancellationToken cancellationToken) Unknown System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.HttpConnectionPool.d__86>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.HttpConnectionPool.d__86>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.HttpConnectionPool.d__86>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.SetExistingTaskResult(System.Threading.Tasks.Task<System.__Canon> task, System.__Canon result) Line 446 C# [Completed] System.Net.Http.dll!System.Net.Http.HttpConnection.SendAsyncCore(System.Net.Http.HttpRequestMessage request, bool async, System.Threading.CancellationToken cancellationToken) Unknown System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.HttpConnection.d__61>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.Net.Http.HttpResponseMessage>.AsyncStateMachineBox<System.Net.Http.HttpConnection.d__61>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder<System.__Canon>.AsyncStateMachineBox<System.Net.Http.HttpConnection.d__61>.MoveNext() Line 302 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.TaskAwaiter.OutputWaitEtwEvents.AnonymousMethod__12_0(System.Action innerContinuation, System.Threading.Tasks.Task innerTask) Line 301 C# System.Private.CoreLib.dll!System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action action, bool allowInlining) Line 743 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.RunContinuations(object continuationObject) Line 3417 C# System.Private.CoreLib.dll!System.Threading.Tasks.Task.TrySetResult(int result) Line 401 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetExistingTaskResult(System.Threading.Tasks.Task task, int result) Line 446 C# [Completed] System.Net.Http.dll!System.Net.Http.HttpConnection.CheckUsabilityOnScavenge.__ReadAheadWithZeroByteReadAsync|44_0() Unknown System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder.AsyncStateMachineBox<System.Net.Http.HttpConnection.<g__ReadAheadWithZeroByteReadAsync|44_0>d>.ExecutionContextCallback(object s) Line 287 C# System.Private.CoreLib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) Line 183 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder.AsyncStateMachineBox<System.Net.Http.HttpConnection.<g__ReadAheadWithZeroByteReadAsync|44_0>d>.MoveNext(System.Threading.Thread threadPoolThread) Line 324 C# System.Private.CoreLib.dll!System.Runtime.CompilerServices.AsyncTaskMethodBuilder.AsyncStateMachineBox<System.Net.Http.HttpConnection.<g__ReadAheadWithZeroByteReadAsync|44_0>d>.MoveNext() Line 302 C# System.Net.Sockets.dll!System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.InvokeContinuation(System.Action continuation, object state, bool forceAsync, bool requiresExecutionContextFlow) Unknown System.Net.Sockets.dll!System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.OnCompleted(System.Net.Sockets.SocketAsyncEventArgs _) Unknown System.Net.Sockets.dll!System.Net.Sockets.SocketAsyncEventArgs..cctor.AnonymousMethod__176_0(uint errorCode, uint numBytes, System.Threading.NativeOverlapped* nativeOverlapped) Unknown System.Private.CoreLib.dll!System.Threading.ThreadPoolTypedWorkItemQueue<System.Threading.PortableThreadPool.IOCompletionPoller.Event, System.Threading.PortableThreadPool.IOCompletionPoller.Callback>.System.Threading.IThreadPoolWorkItem.Execute() Line 1143 C# System.Private.CoreLib.dll!System.Threading.ThreadPoolWorkQueue.Dispatch() Line 924 C# System.Private.CoreLib.dll!System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart() Line 121 C# [Async Call Stack] [Async] Microsoft.AspNetCore.Watch.BrowserRefresh.dll!Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext context) Unknown [Async] Microsoft.AspNetCore.Server.Kestrel.Core.dll!Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests<Microsoft.AspNetCore.Hosting.HostingApplication.Context>(Microsoft.AspNetCore.Hosting.Server.IHttpApplication<Microsoft.AspNetCore.Hosting.HostingApplication.Context> application) Unknown [Async] Microsoft.AspNetCore.Server.Kestrel.Core.dll!Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequestsAsync<Microsoft.AspNetCore.Hosting.HostingApplication.Context>(Microsoft.AspNetCore.Hosting.Server.IHttpApplication<Microsoft.AspNetCore.Hosting.HostingApplication.Context> application) Unknown [Async] Microsoft.AspNetCore.Server.Kestrel.Core.dll!Microsoft.AspNetCore.Server.Kestrel.Core.Internal.HttpConnection.ProcessRequestsAsync<Microsoft.AspNetCore.Hosting.HostingApplication.Context>(Microsoft.AspNetCore.Hosting.Server.IHttpApplication<Microsoft.AspNetCore.Hosting.HostingApplication.Context> httpApplication) Unknown [Async] Microsoft.AspNetCore.Server.Kestrel.Core.dll!Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.KestrelConnection<Microsoft.AspNetCore.Connections.ConnectionContext>.ExecuteAsync() Unknown