Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 23, in <module>
    class GTKUserInterface(apport.ui.UserInterface):
  File "/usr/share/apport/apport-gtk", line 189, in GTKUserInterface
    buttons=Gtk.ButtonsType.CLOSE):
  File "/usr/lib/pymodules/python2.7/gi/module.py", line 237, in __getattr__
    self._import()
  File "/usr/lib/pymodules/python2.7/gi/module.py", line 231, in _import
    overrides_modules = __import__('gi.overrides', fromlist=[self._namespace])
  File "/usr/lib/pymodules/python2.7/gi/overrides/Gtk.py", line 1118, in <module>
    raise RuntimeError("Gtk couldn't be initialized")
RuntimeError: Gtk couldn't be initialized