Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0xc000d3 (main.py)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.
/usr/lib/python2.7/dist-packages/jarabe/main.py:422: Warning: g_object_set_property: assertion 'G_IS_VALUE (value)' failed
  Gtk.main()
/usr/lib/python2.7/dist-packages/jarabe/main.py:422: Warning: g_value_unset: assertion 'G_IS_VALUE (value)' failed
  Gtk.main()
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0xc001fd (main.py)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.