[GH-ISSUE #130] App crashing when timer accesses released object #1070

Closed
opened 2026-02-28 12:01:43 +03:00 by kerem · 2 comments
Owner

Originally created by @ChristianMoritz on GitHub (Jun 1, 2021).
Original GitHub issue: https://github.com/1Remote/1Remote/issues/130

Originally assigned to: @VShawn on GitHub.

Describe the bug
a couple of open rdp connections (to srv 2016 vm's) and when i disconnect an open session the app crashes when i move to another vm.

To Reproduce
Steps to reproduce the behavior:
create a couple of rdp connects.
connect to some VMs with rdp.
then insight the vm go to "sign our" the session and go on the top menu to another open session.

Expected behavior

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

  • OS: [e.g. Win10 Ent 1909]
  • PRemoteM Version 0.5.10.2

Additional context
App Crash Log

Environment

Component Version
PRemoteM 0.5.10.2(EXE release)
.NET Framework .NET Framework 4.8
CLR 4.0.30319.42000
OS Windows 10 Enterprise 64-bits 6.2.9200.0 (1909)

Error Info

Auf das verworfene Objekt kann nicht zugegriffen werden.
Objektname: "Timer".

Stack Trace

   bei System.Timers.Timer.set_Enabled(Boolean value)
   bei System.Timers.Timer.Start()
   bei PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host._ResizeEnd_WindowSizeChanged(Object sender, SizeChangedEventArgs e) in D:\DemoProject\PRemoteM\PRM.Core\Protocol\RDP\Host\AxMsRdpClient09Host.xaml.cs:Zeile 866.
   bei System.Windows.SizeChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   bei System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   bei System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
   bei System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo)
   bei System.Windows.ContextLayoutManager.fireSizeChangedEvents()
   bei System.Windows.ContextLayoutManager.UpdateLayout()
   bei System.Windows.UIElement.UpdateLayout()
   bei System.Windows.Interop.HwndSource.Process_WM_SIZE(UIElement rootUIElement, IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam)
   bei System.Windows.Interop.HwndSource.LayoutFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Recent Log

2021-06-01T10:54:21.4923559+02:00[ThreadId:0000000001]		Debug		RDP Host: init Gateway
2021-06-01T10:54:21.4943531+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Initialized
2021-06-01T10:54:21.5103553+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Connecting
2021-06-01T10:54:22.2153725+02:00[ThreadId:0000000001]		Debug		Start Conn: SAIS01(4216941) by host(16146366) with Tab(39434429)
2021-06-01T10:54:22.2163726+02:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 1, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-01T10:54:22.9984871+02:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnConnected
2021-06-01T10:54:22.9994858+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Connected
2021-06-01T10:54:25.4210839+02:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnLoginComplete
2021-06-01T10:54:28.2262142+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 800, H = 601, Child NaN, NaN
2021-06-01T10:54:28.3321233+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 929, H = 696, Child NaN, NaN
2021-06-01T10:54:28.4594461+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 983, H = 733, Child NaN, NaN
2021-06-01T10:54:28.5980337+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1018, H = 748, Child NaN, NaN
2021-06-01T10:54:28.7341246+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1019, H = 749, Child NaN, NaN
2021-06-01T10:54:28.8883476+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1036, H = 751, Child NaN, NaN
2021-06-01T10:54:29.0394619+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1092, H = 757, Child NaN, NaN
2021-06-01T10:54:29.2035020+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1112, H = 761, Child NaN, NaN
2021-06-01T10:55:18.9144499+02:00[ThreadId:0000000001]		Debug		OrderServerList: Name
2021-06-01T10:55:26.7588789+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Initializing
2021-06-01T10:55:26.7598713+02:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-01T10:55:26.7608724+02:00[ThreadId:0000000001]		Debug		RDP Host: init new AxMsRdpClient9NotSafeForScriptingEx()
2021-06-01T10:55:26.7608724+02:00[ThreadId:0000000001]		Debug		RDP Host: init CreateControl();
2021-06-01T10:55:26.7678362+02:00[ThreadId:0000000001]		Debug		RDP Host: init Static
2021-06-01T10:55:26.7688724+02:00[ThreadId:0000000001]		Debug		RDP Host: init conn bar
2021-06-01T10:55:26.7688724+02:00[ThreadId:0000000001]		Debug		RDP Host: init Redirect
2021-06-01T10:55:26.7698720+02:00[ThreadId:0000000001]		Debug		RDP Host: init Display
2021-06-01T10:55:26.7708715+02:00[ThreadId:0000000001]		Debug		RDP Host: init Performance
2021-06-01T10:55:26.7708715+02:00[ThreadId:0000000001]		Debug		RdpInit: DisplayPerformance = Auto, flag = 0
2021-06-01T10:55:26.7718719+02:00[ThreadId:0000000001]		Debug		RDP Host: init Gateway
2021-06-01T10:55:26.7718719+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Initialized
2021-06-01T10:55:26.7844709+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Connecting
2021-06-01T10:55:26.9186267+02:00[ThreadId:0000000001]		Debug		Start Conn: SAIS02(42201202) by host(44266499) with Tab(39434429)
2021-06-01T10:55:26.9186267+02:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 2, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-01T10:55:27.4494474+02:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnConnected
2021-06-01T10:55:27.4504469+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Connected
2021-06-01T10:55:29.8352957+02:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnLoginComplete
2021-06-01T10:55:39.6534267+02:00[ThreadId:0000000001]		Debug		RDP Host: RdpOnDisconnected
2021-06-01T10:55:39.6544258+02:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Disconnected
2021-06-01T10:55:39.6574260+02:00[ThreadId:0000000001]		Warning		RDP(SAIS02) exit with error code 2(Ein interner Fehler ist aufgetreten.)
2021-06-01T10:55:39.6584327+02:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-01T10:55:39.6654896+02:00[ThreadId:0000000001]		Debug		Remove connectionId = 4 from tab(39434429)
2021-06-01T10:55:39.6664478+02:00[ThreadId:0000000001]		Debug		DelProtocolHost host(44266499)
2021-06-01T10:55:39.6674812+02:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 1, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-01T10:55:39.6714626+02:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-01T10:55:39.6769376+02:00[ThreadId:0000000001]		Debug		DelProtocolHost host(16146366)
2021-06-01T10:55:39.6779319+02:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 0, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-01T10:55:39.6794842+02:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-01T10:55:39.7174948+02:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-01T10:55:43.7521979+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1936, H = 1066, Child NaN, NaN
2021-06-01T10:55:43.7531974+02:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1936, H = 1066, Child NaN, NaN
2021-06-01T10:55:43.7667374+02:00[ThreadId:0000000001]		Fatal		System.ObjectDisposedException: Auf das verworfene Objekt kann nicht zugegriffen werden.
Objektname: "Timer".
   bei System.Timers.Timer.set_Enabled(Boolean value)
   bei System.Timers.Timer.Start()
   bei PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host._ResizeEnd_WindowSizeChanged(Object sender, SizeChangedEventArgs e) in D:\DemoProject\PRemoteM\PRM.Core\Protocol\RDP\Host\AxMsRdpClient09Host.xaml.cs:Zeile 866.
   bei System.Windows.SizeChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   bei System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   bei System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
   bei System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo)
   bei System.Windows.ContextLayoutManager.fireSizeChangedEvents()
   bei System.Windows.ContextLayoutManager.UpdateLayout()
   bei System.Windows.UIElement.UpdateLayout()
   bei System.Windows.Interop.HwndSource.Process_WM_SIZE(UIElement rootUIElement, IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam)
   bei System.Windows.Interop.HwndSource.LayoutFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   bei System.Timers.Timer.set_Enabled(Boolean value)
   bei System.Timers.Timer.Start()
   bei PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host._ResizeEnd_WindowSizeChanged(Object sender, SizeChangedEventArgs e) in D:\DemoProject\PRemoteM\PRM.Core\Protocol\RDP\Host\AxMsRdpClient09Host.xaml.cs:Zeile 866.
   bei System.Windows.SizeChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   bei System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   bei System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
   bei System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo)
   bei System.Windows.ContextLayoutManager.fireSizeChangedEvents()
   bei System.Windows.ContextLayoutManager.UpdateLayout()
   bei System.Windows.UIElement.UpdateLayout()
   bei System.Windows.Interop.HwndSource.Process_WM_SIZE(UIElement rootUIElement, IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam)
   bei System.Windows.Interop.HwndSource.LayoutFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Originally created by @ChristianMoritz on GitHub (Jun 1, 2021). Original GitHub issue: https://github.com/1Remote/1Remote/issues/130 Originally assigned to: @VShawn on GitHub. **Describe the bug** a couple of open rdp connections (to srv 2016 vm's) and when i disconnect an open session the app crashes when i move to another vm. **To Reproduce** Steps to reproduce the behavior: create a couple of rdp connects. connect to some VMs with rdp. then insight the vm go to "sign our" the session and go on the top menu to another open session. **Expected behavior** **Screenshots** If applicable, add screenshots to help explain your problem. **Desktop (please complete the following information):** - OS: [e.g. Win10 Ent 1909] - PRemoteM Version 0.5.10.2 **Additional context** App Crash Log <details> ## Environment | Component | Version | |:------------------|:--------------------------------------| |PRemoteM | `0.5.10.2`(EXE release)| |.NET Framework | `.NET Framework 4.8` | |CLR | `4.0.30319.42000` | |OS | `Windows 10 Enterprise 64-bits 6.2.9200.0 (1909)` | ## Error Info Auf das verworfene Objekt kann nicht zugegriffen werden. Objektname: "Timer". ## Stack Trace ``` bei System.Timers.Timer.set_Enabled(Boolean value) bei System.Timers.Timer.Start() bei PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host._ResizeEnd_WindowSizeChanged(Object sender, SizeChangedEventArgs e) in D:\DemoProject\PRemoteM\PRM.Core\Protocol\RDP\Host\AxMsRdpClient09Host.xaml.cs:Zeile 866. bei System.Windows.SizeChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) bei System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) bei System.Windows.UIElement.RaiseEvent(RoutedEventArgs e) bei System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo) bei System.Windows.ContextLayoutManager.fireSizeChangedEvents() bei System.Windows.ContextLayoutManager.UpdateLayout() bei System.Windows.UIElement.UpdateLayout() bei System.Windows.Interop.HwndSource.Process_WM_SIZE(UIElement rootUIElement, IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam) bei System.Windows.Interop.HwndSource.LayoutFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) ``` ## Recent Log ``` 2021-06-01T10:54:21.4923559+02:00[ThreadId:0000000001] Debug RDP Host: init Gateway 2021-06-01T10:54:21.4943531+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Initialized 2021-06-01T10:54:21.5103553+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Connecting 2021-06-01T10:54:22.2153725+02:00[ThreadId:0000000001] Debug Start Conn: SAIS01(4216941) by host(16146366) with Tab(39434429) 2021-06-01T10:54:22.2163726+02:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 1, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-01T10:54:22.9984871+02:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnConnected 2021-06-01T10:54:22.9994858+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Connected 2021-06-01T10:54:25.4210839+02:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnLoginComplete 2021-06-01T10:54:28.2262142+02:00[ThreadId:0000000001] Debug Tab size change to:W = 800, H = 601, Child NaN, NaN 2021-06-01T10:54:28.3321233+02:00[ThreadId:0000000001] Debug Tab size change to:W = 929, H = 696, Child NaN, NaN 2021-06-01T10:54:28.4594461+02:00[ThreadId:0000000001] Debug Tab size change to:W = 983, H = 733, Child NaN, NaN 2021-06-01T10:54:28.5980337+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1018, H = 748, Child NaN, NaN 2021-06-01T10:54:28.7341246+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1019, H = 749, Child NaN, NaN 2021-06-01T10:54:28.8883476+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1036, H = 751, Child NaN, NaN 2021-06-01T10:54:29.0394619+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1092, H = 757, Child NaN, NaN 2021-06-01T10:54:29.2035020+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1112, H = 761, Child NaN, NaN 2021-06-01T10:55:18.9144499+02:00[ThreadId:0000000001] Debug OrderServerList: Name 2021-06-01T10:55:26.7588789+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Initializing 2021-06-01T10:55:26.7598713+02:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-01T10:55:26.7608724+02:00[ThreadId:0000000001] Debug RDP Host: init new AxMsRdpClient9NotSafeForScriptingEx() 2021-06-01T10:55:26.7608724+02:00[ThreadId:0000000001] Debug RDP Host: init CreateControl(); 2021-06-01T10:55:26.7678362+02:00[ThreadId:0000000001] Debug RDP Host: init Static 2021-06-01T10:55:26.7688724+02:00[ThreadId:0000000001] Debug RDP Host: init conn bar 2021-06-01T10:55:26.7688724+02:00[ThreadId:0000000001] Debug RDP Host: init Redirect 2021-06-01T10:55:26.7698720+02:00[ThreadId:0000000001] Debug RDP Host: init Display 2021-06-01T10:55:26.7708715+02:00[ThreadId:0000000001] Debug RDP Host: init Performance 2021-06-01T10:55:26.7708715+02:00[ThreadId:0000000001] Debug RdpInit: DisplayPerformance = Auto, flag = 0 2021-06-01T10:55:26.7718719+02:00[ThreadId:0000000001] Debug RDP Host: init Gateway 2021-06-01T10:55:26.7718719+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Initialized 2021-06-01T10:55:26.7844709+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Connecting 2021-06-01T10:55:26.9186267+02:00[ThreadId:0000000001] Debug Start Conn: SAIS02(42201202) by host(44266499) with Tab(39434429) 2021-06-01T10:55:26.9186267+02:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 2, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-01T10:55:27.4494474+02:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnConnected 2021-06-01T10:55:27.4504469+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Connected 2021-06-01T10:55:29.8352957+02:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnLoginComplete 2021-06-01T10:55:39.6534267+02:00[ThreadId:0000000001] Debug RDP Host: RdpOnDisconnected 2021-06-01T10:55:39.6544258+02:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Disconnected 2021-06-01T10:55:39.6574260+02:00[ThreadId:0000000001] Warning RDP(SAIS02) exit with error code 2(Ein interner Fehler ist aufgetreten.) 2021-06-01T10:55:39.6584327+02:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-01T10:55:39.6654896+02:00[ThreadId:0000000001] Debug Remove connectionId = 4 from tab(39434429) 2021-06-01T10:55:39.6664478+02:00[ThreadId:0000000001] Debug DelProtocolHost host(44266499) 2021-06-01T10:55:39.6674812+02:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 1, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-01T10:55:39.6714626+02:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-01T10:55:39.6769376+02:00[ThreadId:0000000001] Debug DelProtocolHost host(16146366) 2021-06-01T10:55:39.6779319+02:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 0, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-01T10:55:39.6794842+02:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-01T10:55:39.7174948+02:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-01T10:55:43.7521979+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1936, H = 1066, Child NaN, NaN 2021-06-01T10:55:43.7531974+02:00[ThreadId:0000000001] Debug Tab size change to:W = 1936, H = 1066, Child NaN, NaN 2021-06-01T10:55:43.7667374+02:00[ThreadId:0000000001] Fatal System.ObjectDisposedException: Auf das verworfene Objekt kann nicht zugegriffen werden. Objektname: "Timer". bei System.Timers.Timer.set_Enabled(Boolean value) bei System.Timers.Timer.Start() bei PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host._ResizeEnd_WindowSizeChanged(Object sender, SizeChangedEventArgs e) in D:\DemoProject\PRemoteM\PRM.Core\Protocol\RDP\Host\AxMsRdpClient09Host.xaml.cs:Zeile 866. bei System.Windows.SizeChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) bei System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) bei System.Windows.UIElement.RaiseEvent(RoutedEventArgs e) bei System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo) bei System.Windows.ContextLayoutManager.fireSizeChangedEvents() bei System.Windows.ContextLayoutManager.UpdateLayout() bei System.Windows.UIElement.UpdateLayout() bei System.Windows.Interop.HwndSource.Process_WM_SIZE(UIElement rootUIElement, IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam) bei System.Windows.Interop.HwndSource.LayoutFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) bei System.Timers.Timer.set_Enabled(Boolean value) bei System.Timers.Timer.Start() bei PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host._ResizeEnd_WindowSizeChanged(Object sender, SizeChangedEventArgs e) in D:\DemoProject\PRemoteM\PRM.Core\Protocol\RDP\Host\AxMsRdpClient09Host.xaml.cs:Zeile 866. bei System.Windows.SizeChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) bei System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) bei System.Windows.UIElement.RaiseEvent(RoutedEventArgs e) bei System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo) bei System.Windows.ContextLayoutManager.fireSizeChangedEvents() bei System.Windows.ContextLayoutManager.UpdateLayout() bei System.Windows.UIElement.UpdateLayout() bei System.Windows.Interop.HwndSource.Process_WM_SIZE(UIElement rootUIElement, IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam) bei System.Windows.Interop.HwndSource.LayoutFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) ``` </details>
kerem 2026-02-28 12:01:43 +03:00
Author
Owner

@VShawn commented on GitHub (Jun 2, 2021):

thanks for the report.

The released object was accessed in the timer. This problem should be sporadic. Please wait for the next release version to fix it.

<!-- gh-comment-id:852776277 --> @VShawn commented on GitHub (Jun 2, 2021): thanks for the report. The released object was accessed in the timer. This problem should be sporadic. Please wait for the next release version to fix it.
Author
Owner

@dumarcelino commented on GitHub (Jun 5, 2021):

Hello, I have a same bug with VMS on virtualbox connections:

Environment

Component Version
PRemoteM 0.5.10.2(EXE release)
.NET Framework .NET Framework 4.8
CLR 4.0.30319.42000
OS Windows 10 Enterprise 64-bits 10.0.19042.0 (2009)

Error Info

Referência de objeto não definida para uma instância de um objeto.

Stack Trace

   em PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host.ReConn()
   em PRM.Core.Protocol.ProtocolHostBase.<.ctor>b__16_0(Object o)
   em Shawn.Utils.RelayCommand.Execute(Object parameter)
   em MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Recent Log

2021-06-05T07:41:23.6471467-03:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1918,4, H = 1046,4, Child NaN, NaN
2021-06-05T07:41:23.9401294-03:00[ThreadId:0000000001]		Debug		RDP Host: RdpOnDisconnected
2021-06-05T07:41:23.9431284-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Disconnected
2021-06-05T07:41:23.9451269-03:00[ThreadId:0000000001]		Warning		RDP(Sumauma) exit with error code 2308(Sua sessão Serviços de Área de Trabalho Remota foi encerrada.
A conexão com o computador remoto foi perdida, possivelmente devido a problemas de conectividade da rede. Tente conectar-se ao computador remoto novamente. Se o problema persistir, entre em contato com o administrador de rede ou com o suporte técnico.)
2021-06-05T07:41:23.9471256-03:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:41:24.0571654-03:00[ThreadId:0000000001]		Debug		Remove connectionId = 6 from tab(11854613)
2021-06-05T07:41:24.0581653-03:00[ThreadId:0000000001]		Debug		DelProtocolHost host(17531178)
2021-06-05T07:41:24.0601638-03:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 3, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-05T07:41:24.0641612-03:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:41:58.0947193-03:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnLoginComplete
2021-06-05T07:42:08.6810474-03:00[ThreadId:0000000001]		Debug		Tab size change to:W = 1918,4, H = 1046,4, Child NaN, NaN
2021-06-05T07:42:20.0511557-03:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnLoginComplete
2021-06-05T07:42:20.8656901-03:00[ThreadId:0000000001]		Debug		RDP Host: RdpOnDisconnected
2021-06-05T07:42:20.8676901-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Disconnected
2021-06-05T07:42:20.8696891-03:00[ThreadId:0000000001]		Warning		RDP(dell-edu) exit with error code 2(Erro interno.)
2021-06-05T07:42:20.8706879-03:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:42:20.8846801-03:00[ThreadId:0000000001]		Debug		Remove connectionId = 11 from tab(11854613)
2021-06-05T07:42:20.8866771-03:00[ThreadId:0000000001]		Debug		DelProtocolHost host(38756276)
2021-06-05T07:42:20.8876769-03:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 2, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-05T07:42:20.8916742-03:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:42:23.6850727-03:00[ThreadId:0000000001]		Debug		Call shortcut to invoke quick window.
2021-06-05T07:42:23.7680251-03:00[ThreadId:0000000001]		Debug		OrderServerList: Name
2021-06-05T07:42:28.2366562-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Initializing
2021-06-05T07:42:28.2376560-03:00[ThreadId:0000000001]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:42:28.2386540-03:00[ThreadId:0000000001]		Debug		RDP Host: init new AxMsRdpClient9NotSafeForScriptingEx()
2021-06-05T07:42:28.2406527-03:00[ThreadId:0000000001]		Debug		RDP Host: init CreateControl();
2021-06-05T07:42:28.2666386-03:00[ThreadId:0000000001]		Debug		RDP Host: init Static
2021-06-05T07:42:28.2696371-03:00[ThreadId:0000000001]		Debug		RDP Host: init conn bar
2021-06-05T07:42:28.2716355-03:00[ThreadId:0000000001]		Debug		RDP Host: init Redirect
2021-06-05T07:42:28.2736346-03:00[ThreadId:0000000001]		Debug		RDP Host: init Display
2021-06-05T07:42:28.2756333-03:00[ThreadId:0000000001]		Debug		RDP Host: init Performance
2021-06-05T07:42:28.2766333-03:00[ThreadId:0000000001]		Debug		RdpInit: DisplayPerformance = Auto, flag = 0
2021-06-05T07:42:28.2776328-03:00[ThreadId:0000000001]		Debug		RDP Host: init Gateway
2021-06-05T07:42:28.2786325-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Initialized
2021-06-05T07:42:28.2916241-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Connecting
2021-06-05T07:42:30.2605595-03:00[ThreadId:0000000001]		Debug		Start Conn: dell-edu(62323165) by host(62795050) with Tab(11854613)
2021-06-05T07:42:30.3350262-03:00[ThreadId:0000000001]		Debug		ProtocolHosts.Count = 3, FullWin.Count = 0, _tabWindows.Count = 1
2021-06-05T07:42:32.3164020-03:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnConnected
2021-06-05T07:42:32.3174016-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => Connected
2021-06-05T07:42:32.7541532-03:00[ThreadId:0000000002]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:42:32.7571502-03:00[ThreadId:0000000002]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:42:32.7581488-03:00[ThreadId:0000000002]		Debug		RDP Host: _rdp.Dispose()
2021-06-05T07:42:33.8420390-03:00[ThreadId:0000000001]		Debug		RDP Host:  RdpOnOnLoginComplete
2021-06-05T07:43:18.2833511-03:00[ThreadId:0000000001]		Debug		RDP Host: RDP ReConn, Status = Connected
2021-06-05T07:43:18.2853508-03:00[ThreadId:0000000001]		Debug		AxMsRdpClient09Host: Status => WaitingForReconnect
2021-06-05T07:43:18.3690086-03:00[ThreadId:0000000001]		Fatal		System.NullReferenceException: Referência de objeto não definida para uma instância de um objeto.
   em PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host.ReConn()
   em PRM.Core.Protocol.ProtocolHostBase.<.ctor>b__16_0(Object o)
   em Shawn.Utils.RelayCommand.Execute(Object parameter)
   em MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   em PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host.ReConn()
   em PRM.Core.Protocol.ProtocolHostBase.<.ctor>b__16_0(Object o)
   em Shawn.Utils.RelayCommand.Execute(Object parameter)
   em MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

<!-- gh-comment-id:855221372 --> @dumarcelino commented on GitHub (Jun 5, 2021): Hello, I have a same bug with VMS on virtualbox connections: <details> ## Environment | Component | Version | |:------------------|:--------------------------------------| |PRemoteM | `0.5.10.2`(EXE release)| |.NET Framework | `.NET Framework 4.8` | |CLR | `4.0.30319.42000` | |OS | `Windows 10 Enterprise 64-bits 10.0.19042.0 (2009)` | ## Error Info Referência de objeto não definida para uma instância de um objeto. ## Stack Trace ``` em PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host.ReConn() em PRM.Core.Protocol.ProtocolHostBase.<.ctor>b__16_0(Object o) em Shawn.Utils.RelayCommand.Execute(Object parameter) em MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated) em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg) em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) ``` ## Recent Log ``` 2021-06-05T07:41:23.6471467-03:00[ThreadId:0000000001] Debug Tab size change to:W = 1918,4, H = 1046,4, Child NaN, NaN 2021-06-05T07:41:23.9401294-03:00[ThreadId:0000000001] Debug RDP Host: RdpOnDisconnected 2021-06-05T07:41:23.9431284-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Disconnected 2021-06-05T07:41:23.9451269-03:00[ThreadId:0000000001] Warning RDP(Sumauma) exit with error code 2308(Sua sessão Serviços de Área de Trabalho Remota foi encerrada. A conexão com o computador remoto foi perdida, possivelmente devido a problemas de conectividade da rede. Tente conectar-se ao computador remoto novamente. Se o problema persistir, entre em contato com o administrador de rede ou com o suporte técnico.) 2021-06-05T07:41:23.9471256-03:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:41:24.0571654-03:00[ThreadId:0000000001] Debug Remove connectionId = 6 from tab(11854613) 2021-06-05T07:41:24.0581653-03:00[ThreadId:0000000001] Debug DelProtocolHost host(17531178) 2021-06-05T07:41:24.0601638-03:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 3, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-05T07:41:24.0641612-03:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:41:58.0947193-03:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnLoginComplete 2021-06-05T07:42:08.6810474-03:00[ThreadId:0000000001] Debug Tab size change to:W = 1918,4, H = 1046,4, Child NaN, NaN 2021-06-05T07:42:20.0511557-03:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnLoginComplete 2021-06-05T07:42:20.8656901-03:00[ThreadId:0000000001] Debug RDP Host: RdpOnDisconnected 2021-06-05T07:42:20.8676901-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Disconnected 2021-06-05T07:42:20.8696891-03:00[ThreadId:0000000001] Warning RDP(dell-edu) exit with error code 2(Erro interno.) 2021-06-05T07:42:20.8706879-03:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:42:20.8846801-03:00[ThreadId:0000000001] Debug Remove connectionId = 11 from tab(11854613) 2021-06-05T07:42:20.8866771-03:00[ThreadId:0000000001] Debug DelProtocolHost host(38756276) 2021-06-05T07:42:20.8876769-03:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 2, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-05T07:42:20.8916742-03:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:42:23.6850727-03:00[ThreadId:0000000001] Debug Call shortcut to invoke quick window. 2021-06-05T07:42:23.7680251-03:00[ThreadId:0000000001] Debug OrderServerList: Name 2021-06-05T07:42:28.2366562-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Initializing 2021-06-05T07:42:28.2376560-03:00[ThreadId:0000000001] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:42:28.2386540-03:00[ThreadId:0000000001] Debug RDP Host: init new AxMsRdpClient9NotSafeForScriptingEx() 2021-06-05T07:42:28.2406527-03:00[ThreadId:0000000001] Debug RDP Host: init CreateControl(); 2021-06-05T07:42:28.2666386-03:00[ThreadId:0000000001] Debug RDP Host: init Static 2021-06-05T07:42:28.2696371-03:00[ThreadId:0000000001] Debug RDP Host: init conn bar 2021-06-05T07:42:28.2716355-03:00[ThreadId:0000000001] Debug RDP Host: init Redirect 2021-06-05T07:42:28.2736346-03:00[ThreadId:0000000001] Debug RDP Host: init Display 2021-06-05T07:42:28.2756333-03:00[ThreadId:0000000001] Debug RDP Host: init Performance 2021-06-05T07:42:28.2766333-03:00[ThreadId:0000000001] Debug RdpInit: DisplayPerformance = Auto, flag = 0 2021-06-05T07:42:28.2776328-03:00[ThreadId:0000000001] Debug RDP Host: init Gateway 2021-06-05T07:42:28.2786325-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Initialized 2021-06-05T07:42:28.2916241-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Connecting 2021-06-05T07:42:30.2605595-03:00[ThreadId:0000000001] Debug Start Conn: dell-edu(62323165) by host(62795050) with Tab(11854613) 2021-06-05T07:42:30.3350262-03:00[ThreadId:0000000001] Debug ProtocolHosts.Count = 3, FullWin.Count = 0, _tabWindows.Count = 1 2021-06-05T07:42:32.3164020-03:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnConnected 2021-06-05T07:42:32.3174016-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => Connected 2021-06-05T07:42:32.7541532-03:00[ThreadId:0000000002] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:42:32.7571502-03:00[ThreadId:0000000002] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:42:32.7581488-03:00[ThreadId:0000000002] Debug RDP Host: _rdp.Dispose() 2021-06-05T07:42:33.8420390-03:00[ThreadId:0000000001] Debug RDP Host: RdpOnOnLoginComplete 2021-06-05T07:43:18.2833511-03:00[ThreadId:0000000001] Debug RDP Host: RDP ReConn, Status = Connected 2021-06-05T07:43:18.2853508-03:00[ThreadId:0000000001] Debug AxMsRdpClient09Host: Status => WaitingForReconnect 2021-06-05T07:43:18.3690086-03:00[ThreadId:0000000001] Fatal System.NullReferenceException: Referência de objeto não definida para uma instância de um objeto. em PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host.ReConn() em PRM.Core.Protocol.ProtocolHostBase.<.ctor>b__16_0(Object o) em Shawn.Utils.RelayCommand.Execute(Object parameter) em MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated) em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg) em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) em PRM.Core.Protocol.RDP.Host.AxMsRdpClient09Host.ReConn() em PRM.Core.Protocol.ProtocolHostBase.<.ctor>b__16_0(Object o) em Shawn.Utils.RelayCommand.Execute(Object parameter) em MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated) em System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg) em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) em System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) ``` </details>
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