Bug 2966 - debugging interrupted by UI related exception
Summary: debugging interrupted by UI related exception
Status: RESOLVED FIXED
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Debugger ()
Version: 2.8.5
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Jeffrey Stedfast
URL:
Depends on:
Blocks:
 
Reported: 2012-01-19 08:58 UTC by Sebastien Pouliot
Modified: 2012-01-19 11:00 UTC (History)
1 user (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Sebastien Pouliot 2012-01-19 08:58:37 UTC
My debugging session (MonoTouch) was interrupt by a dialog showing the following when I hit a breakpoint (common operation, first time I've seen this one).

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object
  at MonoDevelop.Components.Docking.DockFrame.AutoHide (MonoDevelop.Components.Docking.DockItem item, MonoDevelop.Components.Docking.AutoHideBox widget, Boolean animate) [0x0005e] in /private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Docking/DockFrame.cs:650 
  at MonoDevelop.Components.Docking.DockFrame+<AutoHide>c__AnonStorey48.<>m__62 (System.Object , System.EventArgs ) [0x00010] in /private/tmp/source/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Docking/DockFrame.cs:644 
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x000d5] in /private/tmp/monobuild/build/BUILD/mono-2.10.8/mcs/class/corlib/System.Reflection/MonoMethod.cs:226 
  --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x000eb] in /private/tmp/monobuild/build/BUILD/mono-2.10.8/mcs/class/corlib/System.Reflection/MonoMethod.cs:234 
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in /private/tmp/monobuild/build/BUILD/mono-2.10.8/mcs/class/corlib/System.Reflection/MethodBase.cs:96 
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x000bf] in /private/tmp/monobuild/build/BUILD/mono-2.10.8/mcs/class/corlib/System/Delegate.cs:408 
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00018] in /private/tmp/monobuild/build/BUILD/mono-2.10.8/mcs/class/corlib/System/MulticastDelegate.cs:70 
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in /private/tmp/monobuild/build/BUILD/mono-2.10.8/mcs/class/corlib/System/Delegate.cs:382 
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0 
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0 
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0
Comment 1 Jeffrey Stedfast 2012-01-19 11:00:54 UTC
This has already been fixed, it might even be in 2.8.6