From Vectorworks Developer
.VectorScript|VectorScript ..VS:Function Reference|Function Reference ..VS:Function_Reference_Appendix|Appendix
DescriptionFunction FndError returns whether an error has occurred within a VectorScript subroutine. Provided as a debugging tool, FndError receives notification after execution of every line of code whether an error has occurred.
FUNCTION FndError : BOOLEAN;
def vs.FndError(): return BOOLEAN
RemarksThis example isn't very helpful. JDW.