Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/Alacarte/MainWindow.py", line 419, in on_item_tree_show_toggled
    self.editor.setVisible(item, True)
  File "/usr/lib/python2.5/site-packages/Alacarte/MenuEditor.py", line 197, in setVisible
    menu_xml = self.__getXmlMenu(self.__getPath(item.get_parent()), dom, dom)
  File "/usr/lib/python2.5/site-packages/Alacarte/MenuEditor.py", line 467, in __getPath
    path = menu.tree.root.get_menu_id()
AttributeError: 'NoneType' object has no attribute 'root'