ubuntu-bug -p xserver-xorg-video-intel caused traceback

When trying to report an error, ubuntu-bug crashed with a callback due to kde4.py not existing.

Output of ubuntu-bug -p xserver-xorg-video-intel:

$ ubuntu-bug -p xserver-xorg-video-intel
Traceback (most recent call last):
  File "/usr/share/apport/apport-kde", line 454, in <module>
    UserInterface = MainUserInterface()
  File "/usr/share/apport/apport-kde", line 178, in __init__
    self.run_argv()
  File "/usr/lib/python2.6/dist-packages/apport/ui.py", line 430, in run_argv
    return self.run_report_bug()
  File "/usr/lib/python2.6/dist-packages/apport/ui.py", line 343, in run_report_bug
    self.collect_info(symptom_script)
  File "/usr/lib/python2.6/dist-packages/apport/ui.py", line 537, in collect_info
    self.ui_start_info_collection_progress()
  File "/usr/share/apport/apport-kde", line 330, in ui_start_info_collection_progress
    _('The collected information can be sent to the developers '
  File "/usr/share/apport/apport-kde", line 112, in __init__
    Dialog.__init__(self, 'progress.ui', title, heading, text)
  File "/usr/share/apport/apport-kde", line 60, in __init__
    uic.loadUi(os.path.join(os.path.dirname(sys.argv[0]), ui), self)
  File "/usr/lib/pymodules/python2.6/PyQt4/uic/__init__.py", line 112, in loadUi
    return DynamicUILoader().loadUi(uifile, baseinstance)
  File "/usr/lib/pymodules/python2.6/PyQt4/uic/Loader/loader.py", line 8, in __init__
    UIParser.__init__(self, QtCore, QtGui, LoaderCreatorPolicy())
  File "/usr/lib/pymodules/python2.6/PyQt4/uic/uiparser.py", line 87, in __init__
    self.factory = QObjectCreator(creatorPolicy)
  File "/usr/lib/pymodules/python2.6/PyQt4/uic/objcreator.py", line 43, in __init__
    if load_plugin(open(os.path.join(plugindir, filename)), plugin_globals, plugin_locals):
IOError: [Errno 2] No such file or directory: '/usr/share/python-qt4/widget-plugins/kde4.py'