offset calibration wizard has GUI error when loaded

[roboalchemist]

Traceback (most recent call last):
File "/Users/joe/Dropbox (ArcBotics)/ArcBotics/Engineering/Github/PoMoCo-2/GUI.py", line 498, in OnPaint
self.IndicateServo(dc, self.activeServo, 'Yellow')
File "/Users/joe/Dropbox (ArcBotics)/ArcBotics/Engineering/Github/PoMoCo-2/GUI.py", line 505, in IndicateServo
dc.DrawCircle(self.servoMapLocations[servo][0], self.servoMapLocations[servo][1], 8) # body outline circle
KeyError: None