Traceback (most recent call last):
  File "/usr/bin/awn-settings", line 1102, in <module>
    awnmanager = awnManagerMini()
  File "/usr/bin/awn-settings", line 968, in __init__
    self.prefManager = awnPreferencesMini(self.wTree)
  File "/usr/bin/awn-settings", line 125, in __init__
    self.init_custom_effects_dialog()
  File "/usr/bin/awn-settings", line 270, in init_custom_effects_dialog
    config.BIND_METHOD_FALLBACK)
GError: Could not find the key specified: /apps/avant-window-navigator/effects/icon_effect.