Traceback (most recent call last):
  File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 1107, in show_lobby
    self.view_manager.set_active_view(ViewPages.AVAILABLE)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/session/viewmanager.py", line 125, in set_active_view
    view_widget.init_view()
  File "/usr/share/software-center/softwarecenter/ui/gtk3/panes/availablepane.py", line 190, in init_view
    self.state, self.display_lobby_page)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/session/viewmanager.py", line 164, in display_page
    if self.get_current_view_widget() != pane:
  File "/usr/share/software-center/softwarecenter/ui/gtk3/session/viewmanager.py", line 91, in get_current_view_widget
    return self.get_view_widget(current_view)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/session/viewmanager.py", line 139, in get_view_widget
    return self.view_to_pane[view_id]
KeyError: None