By the way, the instructions seem to be wrong. I was told at the Genius Bar that it was command+alt+double click at the Aperture icon and not at the library in Finder.
That depends:
- ⌥⌘- double clicking an Aperture Library will open the First Aid panel for the Aperture Library you selected in the Finder.
- ⌥⌘- double clicking an Aperture Library will open the First Aid panel for the Aperture Library that you last opened with Aperture.
If you only have one Aperture library, both ways should give the same result.
Is " “/Users/Jim/Pictures/Libraries/K2 Library.aplibrary”" the library you want to be using? Then try to open the First Aid on this library by directly selecting this library.
Is there a crash log, besides the error message? Then post the first 50 lines, please.
What is your Aperture 3 version and your Mac OS X version? If you have not upgraded to the latest Aperture version, you might try that and see, if that will fix the problem with the brushes.
What did you do, before the problem first occured? Import images, installed other software, plug-ins?
You already rebooted, but I suggest, you also try to start up in Safe Boot mode and temporarily disable login items.
Aperture will not be able to run in Safe Boot mode, but this will reset the Graphics card.
The forced quit my have left your Preferences file corrupted, so I'd recommend to remove the Preferences file, if fixing the library does not work, see: Aperture 3: Troubleshooting Basics
Regards
Léonie