Error: RuntimeError: file C:/Users/IuriMonteiro/Documents/maya/2017/scripts/MayaTools/General/Scripts\ART_skeletonBuilder_UI.py line 8758: Error occurred during execution of MEL script
line 1: Invalid argument: displayRGBColor
It gives me this when I try to take a snapshot of the rig and I can’t build a control rig.
I have found a solution
I think it has to do with the UI.
Undock the ART tool window from the main Maya UI.
Make sure the channel box is not part of it (ART tool window)
Press Build again, it should work.