I am having a similar problem. Can't get newly installed after effects to start. I keep getting this dialog box:
I've tried going to the "After Effects/13.8" folder, but I'm not sure what settings on the file permissions I need to verify. The System already set to read and write so there shouldn't be any issues right? Anyone have a solution for this?
I went ahead and moved this to a new conversation as the one you responded to was about crashing on Windows early in the startup with a different error message.
I don't have a mac handy, does this provide enough info on what to change to force permission change?
Found the answer: