Traceback (most recent call last):
  File "/usr/bin/ubuntustudio-controls", line 154, in <module>
    uscontrols.serialze_settings()
  File "/usr/bin/ubuntustudio-controls", line 114, in serialze_settings
    self.settings_value['memlock'] = { 'memlock_checkButton' : self.wTree.get_widget('memlock_checkButton').get_active(), 'memlock_spinbutton' : self.wTree.get_widget('memlock_spinbutton').get_value() }
AttributeError: 'NoneType' object has no attribute 'get_active'