This article has been updated many times since I initially wrote it, and some great readers’ comments describe specific problems people encountered and provide valuable insights – as well as corrections to my text.
Because library and database corruption can prevent Aperture 3 from launching, you will need to invoke a sequence of startup keys to access the Aperture 3 Library First Aid utility Of course, we should all be using a backup process to ensure our image library and database are protected and can be recovered at any time.
To access the tool, do the following: Repair Permissions: Examines your library for permissions problems and repairs them. Repair Database: Checks for inconsistencies in your library and repairs them.
Rebuild Database: Examines and rebuilds your database.
After waiting several hours to no avail, I further found that the standalone Aperture 3.5 update was also not available through Apple’s support download site.
After logging out and then back into the Mac App Store, the Aperture update finally appeared for me.
Search for updating aperture:
Before you can reinstall Aperture 3, you must first remove the existing installation.