I've been using OmniGraffle as a drawing tool for a textbook I'm writing. Up to today I've drawn the drawing, saved it as a graffle. I then, export the same graffle drawing as a png, as per my publisher's requirements.(With NO problems)
This morning for some reason, I now get the following message when I go to export the drawing as a png.
" The document “9.1 Simplify Fract Ex.12.graffle” could not be exported as “9.1 Simplify Fract Ex.12.png”. mkdir: /Users/condor2892/Desktop/Wiley Drawings/Ch7: Operation not permitted "
1./What does it mean and is it fixable? 2./How do I fix it?
Thanks in advance for your help,
Paul