/usr/lib/ruby/1.8/glib2.rb: line 55
   GLib-GObject-CRITICAL **:g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
/usr/lib/ruby/1.8/glib2.rb: line 55
   GLib-GObject-CRITICAL **:g_param_spec_boxed: assertion `G_TYPE_IS_BOXED (boxed_type)' failed
/usr/lib/ruby/1.8/glib2.rb: line 55
   GLib-GObject-CRITICAL **:g_object_class_install_property: assertion `G_IS_PARAM_SPEC (pspec)' failed
/usr/lib/ruby/1.8/glib2.rb: line 55
   GLib-GObject-CRITICAL **:g_param_spec_boxed: assertion `G_TYPE_IS_BOXED (boxed_type)' failed
/usr/lib/ruby/1.8/glib2.rb: line 55
   GLib-GObject-CRITICAL **:g_object_class_install_property: assertion `G_IS_PARAM_SPEC (pspec)' failed
./gtk.rb:14: uninitialized constant GTK