Traceback (most recent call last):
  File "/usr/games/gnome-sudoku", line 23, in <module>
    start_game()
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/gnome_sudoku.py", line 22, in start_game
    main.start_game()
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/main.py", line 983, in start_game
    u = UI()
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/main.py", line 139, in __init__
    if self.select_game():
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/main.py", line 52, in inactivate_new_game_etc_
    ret = fun(ui, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/main.py", line 151, in select_game
    choice = game_selector.NewOrSavedGameSelector().run_swallowed_dialog(self.swallower)
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/game_selector.py", line 270, in run_swallowed_dialog
    self.setup_dialog()
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/game_selector.py", line 93, in setup_dialog
    self.make_saved_game_model()
  File "/usr/lib/python2.7/dist-packages/gnome_sudoku/game_selector.py", line 202, in make_saved_game_model
    durationText = ngettext("Played for %d minute", "Played for %d minutes", minutes) % minutes
TypeError: not all arguments converted during string formatting