This can happen if you store the project on a disk that isn't formatted for the Mac (Mac OS Extended, also called HFS+).
Check your disk's info (single-click on the icon and press Apple-I)
More on file systems on the Apple Knowledge Base
This can happen if you store the project on a disk that isn't formatted for the Mac (Mac OS Extended, also called HFS+).
Check your disk's info (single-click on the icon and press Apple-I)
More on file systems on the Apple Knowledge Base