Problem: According to CoronaSDK official instruction, Ad Hoc Provisioning Profile File to this location: /Users/(your user)/Library/MobileDevice/Provisioning Profiles/ However, you do not have access to this particular folder.

Cause: By default, Mac OSX hide the ~/Library folder

Solution: Open a new Terminal app window by going to Finder/Applictaions/Utilities/Terminal, and run:

chflags nohidden ~/Library/