"System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> GLib.MissingIntPtrCtorException: GLib.Object subclass Do.Interface.ClassicWindow must provide a protected or public IntPtr ctor to support wrapping of native object handles." crash clicking preferences

[Martin Pool]

I'm running Version: 0.8.2+dfsg-0~9.04~ppa3 from the PPA (obviously).

I just clicked the dropdown in the Do popup box, then Preferences. Do immediately crashed with this traceback:

Marshaling activate signal
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> GLib.MissingIntPtrCtorException: GLib.Object subclass Do.Interface.ClassicWindow must provide a protected or public IntPtr ctor to support wrapping of native object handles.
  at GLib.ObjectManager.CreateObject (IntPtr raw) [0x00000]
  at GLib.Object.GetObject (IntPtr o, Boolean owned_ref) [0x00000]
  at GLib.Object.GetObject (IntPtr o) [0x00000]
  at Gtk.Grab.get_Current () [0x00000]
  at Do.Core.Controller.ShowPreferences () [0x00000]
  at Do.Universe.PreferencesItem.Run () [0x00000]
  at Do.UI.MainMenu+<MenuItemFromRunnableItem>c__AnonStorey30.<>m__42 (System.Object sender, System.EventArgs e) [0x00000]
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (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) [0x00000]
  --- 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) [0x00000]
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000]
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000]
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000]
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000]
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000]
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000]
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000]
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Do.Do.Main(System.String[] args)

Thanks for a great program.

[Charlie Daly (cdaly)]

This happened to me too.
Running on 2.6.28-14-generic #47-Ubuntu SMP Sat Jul 25 00:28:35 UTC 2009 i686 GNU/Linux

GNOME Do 0.8.2
Release

I can't see how to get more info about gnome-do.

[Lysander (pinlisandro)]

Happens to me too on a fresh GNOME Do install (both 8.2 and 8.3.3.1), running on 2.6.30-gentoo-r8 #5 i686 Intel(R) Atom(TM) CPU N270 @ 1.60GHz GenuineIntel GNU/Linux. For whatever's worth it works flawlessly on a AMD64 tricore system, with 64-bit libraries and binaries.

[Gerry (gerry-spm+lnchpad)]

Happens to me quite often when I click on a program icon in the doc. I imagine this is probably happening to a lot more people who have not reported it as the problem cause isn't predictable.

Ubuntu Karmic
uname -a --> Linux 2.6.31-20-generic #57-Ubuntu SMP Mon Feb 8 09:05:19 UTC 2010 i686 GNU/Linux
GNOME Do 0.8.2

[Gerry (gerry-spm+lnchpad)]

This is happening to me multiple times a day.

One method to replicate the bug (although it happens in a lot of other situations):

Requirements
===========
- Have Compiz enabled
- Have gnome-do set to the Docky theme

1. Press Ctrl+Space to bring up Do and type "switch" and select Compiz-switch to disable compiz
2. Repeat step 1 to re-enable compiz
3. Move your mouse so that Docky appears and click on an icon to start it.
4. Watch as nothing happens and see how gnome-do is no longer running. Logging the errors will reveal the exception that is not being handled.

[Gerry (gerry-spm+lnchpad)]

This bug appears to be related to the following bug as the exception seems to be the same: https://bugs.launchpad.net/ubuntu/+source/gnome-do/+bug/448094/

However I'm not sure if that fix will also fix the issue presented in this bug.

[Lysander (pinlisandro)]

Apparently the bug gerry refers to was fixed on 0.8.3.1. but i still experience the crash whenever i open the Preferences window