gnome-do crashed with GLib.MissingIntPtrCtorException

[Johannes H. Jensen]

GNOME Do 0.8.2 crashed after I changed my theme in gnome-appearance-properties:

Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
GLib.MissingIntPtrCtorException: GLib.Object subclass Do.Interface.AnimatedClassicWindow 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.Widget.get_Parent () [0x00000]
  at Do.Interface.ClassicBackgroundRenderer.get_BackgroundColor () [0x00000]
  at Do.Interface.AnimationBase.BezelDrawingArea.get_BackgroundColor () [0x00000]
  at Do.Interface.AnimationBase.BezelDrawingArea.OnStyleSet (Gtk.Style previous_style) [0x00000]
  at Gtk.Widget.styleset_cb (IntPtr widget, IntPtr previous_style) [0x00000]
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at Gtk.Widget.styleset_cb(IntPtr widget, IntPtr previous_style)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Do.Do.Main(System.String[] args)

I'm unfortunately not able to reproduce this at the moment, but the stack trace might be helpful anyway...

System information:
- Ubuntu Jaunty
- gnome-do 0.8.2+dfsg-0~9.04~ppa3
- mono 2.0.1-4ubuntu0.1
- gtk-sharp 2.12.8-2

Please let me know if there's any other information I can provide.

[Robert Dyer (psybers)]

Trust me when I say this is a duplicate of bug 394529 (even if the steps to reproduce are a bit different). Both involve changing themes and getting this crash. :-)