Unhandled Exception: System.TypeInitializationException: An exception was thrown by the type initializer for Gtk.Container ---> System.DllNotFoundException: gtksharpglue-2
  at (wrapper managed-to-native) Gtk.Container:gtksharp_gtk_container_get_focus_child_offset ()
  at Gtk.Container..cctor () [0x00000] --- End of inner exception stack trace ---