File "/Library/Python/2.7/site-packages/vanilla/vanillaBase.py", line 214, in action_
self.callback(sender)
File "~/Library/Application Support/Glyphs/Scripts/HTLetterspacer-master/HT_LetterSpacer_script.py", line 482, in dialogCallback
self.spaceMain()
File "~/Library/Application Support/Glyphs/Scripts/HTLetterspacer-master/HT_LetterSpacer_script.py", line 565, in spaceMain
if len(self.mySelection) < 2 and drawAreas == True and lpolygon is not None:
UnboundLocalError: local variable 'lpolygon' referenced before assignment
I got this from a user: