Trouble with ART for Mac

Hello,

recently I updated to UE 4.15 and moved the project files of the rigs I was working with to the corresponding folders in UE 4.15. However, when I booted up Maya and attempted to add a character to the scene, ART spat out this error:

Error: RuntimeError: file /Users/Shared/Epic Games/UE_4.15/Engine/Extras/Maya_AnimationRiggingTools/ArtToolsOSX/MayaTools/General/Scripts/art_v1/ART_addCharacter_UI.py line 108: Object ‘addCharacter_UI|columnLayout13|formLayout111|textScrollList5’ not found.

Then it closes out.
The project files are there, but Maya can’t seem to find them.

I’m wondering if when I moved the MayaTools directories I messed up somehow.

Any help is appreciated!