Maya Animation and Rigging Toolset |Couldn't publish the character

Hi! I couldn’t save my character in ART. I’m using standard settings of ART, but I get the error

Could not save file: C:/Program Files/Unreal Engine/4.0/Engine/Extras/Maya_AnimationRiggingTools/MayaTools/General/ART/Projects/Sample/ExportFiles/Scharacter_Sample_Export.mb not a valid file.
File may exist already and be marked as read only. Aborting operation.

This is a known issue apparently and is being addressed:

See this thread.

Could not save file for Maya Animation Rigging Toolset - Character & Animation - Unreal Engine Forums

Thank you.

temporary fix here :

This is now resolved!
Check the official thread created detailing known issues, frequently asked questions, and upcoming features as well as the latest code drops:

ART Master Thread