My Aperture won't open

Have you tried to open a new library by holding down the option key on launch?

I suggest opening 2 finder windows. One finder window displaying your Aperture application and the other displaying your Aperture library. Then, select each one to confirm they both show the same version in the info area (or command+i to get info). Once you know for sure they are the same, drag that library onto the Aperture application in that folder.

I suggest making sure your Aperture and systems are updated to the latest.

Trash Aperture's "preferences" file: it may be locked to a wrong library.

Then try to double click your Aperture library to open it directly.

Remove the Aperture's user preferences from the User Library as described here:

Aperture 3: Troubleshooting Basics

Note:

Your User Library is hidden by default in 10.7.5 - to open it in a Finder window use the "Go" menu from the Finder's main menu bar.

• Quit Aperture, if it is running. Log off and on again.
• Open the user library by using the Finder's "Go > Go to Folder" menu and hold down the options-key, until "Library" appears in the drop down menu. Select it.
• In the widow that will open, scroll down to "Preferences"
• From the "Preferences" folder remove "com.apple.Aperture.plist".

Then try to launch Aperture again.

But deleting the "Preferences" file will cause Aperture to forget the preferences settings. Be prepared to have to reset all options you set using the Aperture Preferences panel.

Regards

Léonie

Hi Mary,

Did you get your libray to open? You might try upgrading Aperture to 3.4.5 and then try opening it.