Still having DelayedException in production

[isatahiri]

Hello,

I'm in the version 19.1.605.9 and i also have a DelayedException, in production.
In 24hours i have 2MB in the eXpressAppFramework.

No access denied exception in the log.

Is this the same error as #543 ?

Was this error corrected ?

eXpressAppFramework.log
`Delayed exception 4:

	Type:       DelayedException
	Message:    An asynchronous operation cannot be started at this time. Asynchronous operations may only be started within an asynchronous handler or module or during certain events in the Page lifecycle. If this exception occurred while executing a Page, ensure that the Page is marked <%@ Page Async="true" %>. This exception may also indicate an attempt to call an "async void" method, which is generally unsupported within ASP.NET request processing. Instead, the asynchronous method should return a Task, and the caller should await it.. 'Xpand.XAF.Modules.RefreshView.RefreshViewModule'
	Data:       0 entries
	Stack trace:


	----------------
	InnerException:

			Type:       InvalidOperationException
			Message:    An asynchronous operation cannot be started at this time. Asynchronous operations may only be started within an asynchronous handler or module or during certain events in the Page lifecycle. If this exception occurred while executing a Page, ensure that the Page is marked <%@ Page Async="true" %>. This exception may also indicate an attempt to call an "async void" method, which is generally unsupported within ASP.NET request processing. Instead, the asynchronous method should return a Task, and the caller should await it.
			Data:       0 entries
			Stack trace:

at System.Web.AspNetSynchronizationContext.OperationStarted()
at System.Reactive.Concurrency.SynchronizationContextExtensions.PostWithStartComplete(SynchronizationContext context, Action action) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\SynchronizationContextExtensions.cs:line 35
at System.Reactive.Concurrency.SynchronizationContextScheduler.Schedule[TState](TState state, Func3 action) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Concurrency\SynchronizationContextScheduler.cs:line 71 at System.Reactive.Concurrency.Scheduler.ScheduleAction[TState](IScheduler scheduler, TState state, Action1 action) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Concurrency\Scheduler.Simple.cs:line 61
at System.Reactive.Linq.ObservableImpl.EventProducer2.Session.<>c.<Connect>b__5_0(ValueTuple3 tuple) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\FromEvent.cs:line 294
at System.Reactive.Disposables.AnonymousDisposable1.Dispose() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\AnonymousDisposable.cs:line 73 at System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\Disposable.cs:line 238 at System.Reactive.SafeObserver1.Dispose(Boolean disposing) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\SafeObserver.cs:line 93
at System.Reactive.Disposables.CompositeDisposable.Dispose() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\CompositeDisposable.cs:line 243
at System.Reactive.Linq.ObservableImpl.SelectMany2.ObservableSelector._.Dispose(Boolean disposing) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\SelectMany.cs:line 900 at System.Reactive.Sink1.Dispose() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\Sink.cs:line 31
at System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\Disposable.cs:line 238
at System.Reactive.Sink1.Dispose() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\Sink.cs:line 31 at System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\Disposable.cs:line 238 at System.Reactive.Sink1.Dispose() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\Sink.cs:line 31
at System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\Disposable.cs:line 238
at System.Reactive.Linq.ObservableImpl.TakeUntil2._.Dispose(Boolean disposing) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\TakeUntil.cs:line 52 at System.Reactive.Sink1.Dispose() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\Sink.cs:line 31
at System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Disposables\Disposable.cs:line 238
at System.Reactive.SafeObserver1.Dispose(Boolean disposing) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\SafeObserver.cs:line 93 at System.Reactive.AnonymousSafeObserver1.OnCompleted() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\AnonymousSafeObserver.cs:line 74
at System.Reactive.Sink1.ForwardOnCompleted() in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\Sink.cs:line 55 at System.Reactive.Linq.ObservableImpl.TakeUntil2..OtherObserver.OnNext(TOther value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\TakeUntil.cs:line 93
at System.Reactive.SafeObserver1.WrappingSafeObserver.OnNext(TSource value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\SafeObserver.cs:line 31 at System.Reactive.Sink1.ForwardOnNext(TTarget value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Internal\Sink.cs:line 50
at System.Reactive.Linq.ObservableImpl.Select2.Selector._.OnNext(TSource value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\Select.cs:line 48 at System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\Select.cs:line 48
at System.Reactive.Linq.ObservableImpl.SelectMany2.ObservableSelector._.InnerObserver.OnNext(TResult value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Linq\Observable\SelectMany.cs:line 946 at System.Reactive.Subjects.Subject1.OnNext(T value) in d:\a\1\s\Rx.NET\Source\src\System.Reactive\Subjects\Subject.cs:line 148
at System.ComponentModel.Component.Dispose(Boolean disposing)
at System.ComponentModel.Component.Dispose()
at DevExpress.Persistent.Base.SafeExecutor.Execute(Method method, Object targetObject, String targetObjectIdentifier)
InnerException is null`

[apobekiaris]

Hi

Clear pros instruction or a sample is needed

[isatahiri]

Hi,

Publish the web project (right click Publish) (I have the option precompile in the publish settings)
Copy files into iis in server.
Run the app via Chrome.

In the logger, everything is set to OFF.

BR
ISA

[apobekiaris]

I do not see any sample here, r u still having issues?

[vimarx]

is this issue still open? I have the same problem in 19.2.301.x

[vimarx]

@isatahiri have you fixed it?

[isatahiri]

Sorry for the late answer.
I cannot answer to that yet as i have not migrated to the 19.2 due to some issue. (#627)
As soon as i do the migration to the 19.2, i'll answer in this issue.

Does your question mean that you have migrated to 19.2 and still have this issue ?

BR
ISA

[vimarx]

@isatahiri I have the problem in 19.2.x in login.aspx in web

[vimarx]

I'm in a hurry, can't solve this exception in web! even with last lab or with 19.1.700.x ported to 19.2

System.InvalidOperationException: Una operación asincrónica no se puede comenzar en este momento. Solo se pueden comenzar operaciones asincrónicas dentro de un controlador o módulo asincrónico o durante ciertos eventos en el ciclo de vida de la página. Si esta excepción se produjo mientras se ejecutaba una página, asegúrese de que la página esté marcada con . Esta excepción puede también indicar que se intentó llamar a un método "async void" que generalmente no es compatible con el procesamiento de solicitudes de ASP.NET. En su lugar, el método asincrónico debería devolver una Tarea y el llamador debería esperarla.
en System.Web.AspNetSynchronizationContext.OperationStarted()
en System.Reactive.Concurrency.SynchronizationContextExtensions.PostWithStartComplete(SynchronizationContext context, Action action)
en System.Reactive.Concurrency.SynchronizationContextScheduler.Schedule[TState](TState state, Func3 action) en System.Reactive.Concurrency.Scheduler.ScheduleAction[TState](IScheduler scheduler, TState state, Action1 action)
en System.Reactive.Linq.ObservableImpl.EventProducer2.Session.<>c.b__5_0(ValueTuple3 tuple)
en System.Reactive.Disposables.AnonymousDisposable1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Linq.ObservableImpl.Buffer2.Boundaries..Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TrySetSerial(IDisposable& fieldRef, IDisposable value) en System.Reactive.ConcatSink1.OnCompleted()
en System.Reactive.Sink1.ForwardOnCompleted() en System.Reactive.Sink2.OnCompleted()
en System.Reactive.Sink1.ForwardOnCompleted() en System.Reactive.Linq.ObservableImpl.FirstAsync1.Sequence..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Buffer2.Boundaries..BufferClosingObserver.OnNext(TBufferClosing value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.FirstAsync1.Sequence..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.FirstAsync1.Sequence..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value)
en System.Reactive.Subjects.Subject1.OnNext(T value) en System.Reactive.Linq.ObservableImpl.FromEventPattern.Impl2.<>c__DisplayClass3_0.b__1(Object sender, TEventArgs eventArgs)
en System.EventHandler1.Invoke(Object sender, TEventArgs e) en DevExpress.ExpressApp.XafApplication.OnObjectSpaceCreated(IObjectSpace objectSpace) en DevExpress.ExpressApp.XafApplication.CreateObjectSpace(Type objectType) en Xpand.ExpressApp.ModelDifference.DictionaryStores.XpoDictionaryDifferenceStore..ctor(XafApplication application) en Xpand.ExpressApp.ModelDifference.ModelDifferenceModule.ApplicationOnCreateCustomUserModelDifferenceStore(Object sender, CreateCustomModelDifferenceStoreEventArgs createCustomModelDifferenceStoreEventArgs) en System.EventHandler1.Invoke(Object sender, TEventArgs e)
en DevExpress.ExpressApp.XafApplication.CreateUserModelDifferenceStore(CreateCustomModelDifferenceStoreEventArgs args)
en DevExpress.ExpressApp.XafApplication.LoadUserDifferences()
en DevExpress.ExpressApp.XafApplication.Logon(PopupWindowShowActionExecuteEventArgs logonWindowArgs)
en DevExpress.ExpressApp.XafApplication.showLogonAction_OnExecute(Object sender, PopupWindowShowActionExecuteEventArgs args)
en DevExpress.ExpressApp.Actions.PopupWindowShowAction.RaiseExecute(ActionBaseEventArgs eventArgs)
en DevExpress.ExpressApp.Actions.ActionBase.ExecuteCore(Delegate handler, ActionBaseEventArgs eventArgs)
WEB
Void OperationStarted()
en System.Web.AspNetSynchronizationContext.OperationStarted()
en System.Reactive.Concurrency.SynchronizationContextExtensions.PostWithStartComplete(SynchronizationContext context, Action action)
en System.Reactive.Concurrency.SynchronizationContextScheduler.Schedule[TState](TState state, Func3 action) en System.Reactive.Concurrency.Scheduler.ScheduleAction[TState](IScheduler scheduler, TState state, Action1 action)
en System.Reactive.Linq.ObservableImpl.EventProducer2.Session.<>c.b__5_0(ValueTuple3 tuple)
en System.Reactive.Disposables.AnonymousDisposable1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Linq.ObservableImpl.Buffer2.Boundaries..Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TryDispose(IDisposable& fieldRef) en System.Reactive.Sink1.Dispose(Boolean disposing)
en System.Reactive.Sink1.Dispose() en System.Reactive.Disposables.Disposable.TrySetSerial(IDisposable& fieldRef, IDisposable value) en System.Reactive.ConcatSink1.OnCompleted()
en System.Reactive.Sink1.ForwardOnCompleted() en System.Reactive.Sink2.OnCompleted()
en System.Reactive.Sink1.ForwardOnCompleted() en System.Reactive.Linq.ObservableImpl.FirstAsync1.Sequence..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Buffer2.Boundaries..BufferClosingObserver.OnNext(TBufferClosing value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.FirstAsync1.Sequence..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.FirstAsync1.Sequence..OnNext(TSource value)
en System.Reactive.Sink1.ForwardOnNext(TTarget value) en System.Reactive.Linq.ObservableImpl.Select2.Selector..OnNext(TSource value)
en System.Reactive.Subjects.Subject1.OnNext(T value) en System.Reactive.Linq.ObservableImpl.FromEventPattern.Impl2.<>c__DisplayClass3_0.b__1(Object sender, TEventArgs eventArgs)
en System.EventHandler1.Invoke(Object sender, TEventArgs e) en DevExpress.ExpressApp.XafApplication.OnObjectSpaceCreated(IObjectSpace objectSpace) en DevExpress.ExpressApp.XafApplication.CreateObjectSpace(Type objectType) en Xpand.ExpressApp.ModelDifference.DictionaryStores.XpoDictionaryDifferenceStore..ctor(XafApplication application) en Xpand.ExpressApp.ModelDifference.ModelDifferenceModule.ApplicationOnCreateCustomUserModelDifferenceStore(Object sender, CreateCustomModelDifferenceStoreEventArgs createCustomModelDifferenceStoreEventArgs) en System.EventHandler1.Invoke(Object sender, TEventArgs e)
en DevExpress.ExpressApp.XafApplication.CreateUserModelDifferenceStore(CreateCustomModelDifferenceStoreEventArgs args)
en DevExpress.ExpressApp.XafApplication.LoadUserDifferences()
en DevExpress.ExpressApp.XafApplication.Logon(PopupWindowShowActionExecuteEventArgs logonWindowArgs)
en DevExpress.ExpressApp.XafApplication.showLogonAction_OnExecute(Object sender, PopupWindowShowActionExecuteEventArgs args)
en DevExpress.ExpressApp.Actions.PopupWindowShowAction.RaiseExecute(ActionBaseEventArgs eventArgs)
en DevExpress.ExpressApp.Actions.ActionBase.ExecuteCore(Delegate handler, ActionBaseEventArgs eventArgs)

[apobekiaris]

Without a repro cases cannot help much. As u probably know this is a generic message from an async call out of context and provides no further info. You can work it out removing parts of the framework step by step until u identify the problem.

[apobekiaris]

see #661

[expand]

Closing issue for age. Feel free to reopen it at any time.

.Thank you for your contribution.