Created attachment 322094 [details]
click tree item in beagle-search

Description of problem:
$ cat ~/.xsession-errors
[...]
*** Using mono runtime at mono ***
Warn: Inotify watches may be too low (8192) for some users!  Increase it to at least 65535 by setting fs.inotify.max_user_watches in /etc/sysctl.conf
Debug: Using utf8 encoding for filenames
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///usr/share/applications/gnome-bug-buddy.desktop (File)
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///usr/share/applications/emacs.desktop (File)
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///usr/share/applications/emacs.desktop (File)
Debug: Scope changed: 프로그램 maps to 'filetype:application OR source:applications'
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///home/sangu/rpmbuild/BUILD/emacs-23.0.60/etc/emacs.desktop (File)
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///home/sangu/Work/cvs/emacs/nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop (File)
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///home/sangu/rpmbuild/BUILD/emacs-23.0.60/nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop (File)
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///home/sangu/Work/cvs/emacs/etc/emacs.desktop (File)
Error instantiating tile:
System.DllNotFoundException: libgnome-desktop-2.so.2
  at (wrapper managed-to-native) Beagle.Search.Tiles.ApplicationActivator:gnome_desktop_item_new_from_uri (string,int,intptr)
  at Beagle.Search.Tiles.ApplicationActivator.Validate (Beagle.Hit hit) [0x00000] 
  at Beagle.Search.Tiles.TileActivatorOrg.MakeTile (Beagle.Hit hit, Beagle.Query query) [0x00000] 
No tile found for: file:///usr/share/applications/emacs.desktop (File)
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. ---> System.NullReferenceException: Object reference not set to an instance of an object
  at Beagle.Search.GroupView.OnCategoryToggle (ScopeType catScope) [0x00000] 
  at Beagle.Search.Category.OnActivated (System.Object obj, System.EventArgs args) [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 Gnome.Program.Run()
   at Beagle.Search.Driver.Main(System.String[] args)


Version-Release number of selected component (if applicable):
0.3.8-9.fc10

How reproducible:
always

Steps to Reproduce:
1. launch beagle-search
2. search GNOME
3. Click Images (Tree  Item)
  
Actual results:


Expected results:


Additional info:
gnome-desktop-sharp-2.24.0-3.fc10.i386
gnome-sharp-2.24.0-1.fc10.i386