rendered paste body(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1642 (g_object_get_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1667 (g_object_set_data_full): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1655 (g_object_set_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1642 (g_object_get_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1667 (g_object_set_data_full): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1655 (g_object_set_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1642 (g_object_get_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1667 (g_object_set_data_full): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1655 (g_object_set_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1642 (g_object_get_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1667 (g_object_set_data_full): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1655 (g_object_set_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1642 (g_object_get_data): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1667 (g_object_set_data_full): assertion `G_IS_OBJECT (object)' failed
(MonoDevelop:4284): GLib-GObject-CRITICAL **: file gobject.c: line 1655 (g_object_set_data): assertion `G_IS_OBJECT (object)' failed
Expr: |this|
Here: Type is MyWindow