I just found our plugin can't work on High Sierra (everything is fine on Sierra), does anyone know the solutions for this? A workaround may also be helpful.
In addition, we found other two methods got no respond after we called them:
This bug has been submitted by other developers: http://sketchplugins.com/d/272-error-on-high-sierra
I wonder if it could be the bug of Cocoascript.framework. After all, it hasn't been updated for a long while...