I don't know how to follow those. i'm on a macbook and I've never had these kind of problems before.
Unfortunately, all I can really do is recommend this link again:
https://forums.rpgmakerweb.com/index.php?threads/failed-deployment-to-mac-os-x.5...
you can also try googling the issue to see if anyone else has failed solutions. Sorry, but short of me going to your place to fiddle with your computer, there's not much I can actually do about this, since it's specific to your computer's permissions.