(process:15370): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(process:15370): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion 'GDK_IS_SCREEN (screen)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_colormap_get_visual: assertion 'GDK_IS_COLORMAP (colormap)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion 'GDK_IS_SCREEN (screen)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion 'GDK_IS_SCREEN (screen)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion 'GDK_IS_SCREEN (screen)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_window_new: assertion 'GDK_IS_WINDOW (parent)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_screen_get_display: assertion 'GDK_IS_SCREEN (screen)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_display_sync: assertion 'GDK_IS_DISPLAY (display)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_window_get_display: assertion 'GDK_IS_WINDOW (window)' failed

(process:15370): Gdk-CRITICAL **: IA__gdk_x11_get_xatom_by_name_for_display: assertion 'GDK_IS_DISPLAY (display)' failed

(process:15370): Gdk-WARNING **: /tmp/buildd/gtk+2.0-2.24.23/gdk/x11/gdkdrawable-x11.c:952 drawable is not a pixmap or window

(process:15370): Gdk-CRITICAL **: IA__gdk_x11_display_get_xdisplay: assertion 'GDK_IS_DISPLAY (display)' failed