I hadn't used the Magic GarageBand feature before today (I generally don't use GarageBand that often) and when I went to try it, everything seemed to work until I clicked Open in GarageBand in the lower right corner. When I do that I always get an error similar to:
I tried it with most of the generas, and all produce a similar error.
I reinstalled iLife '11, which didn't fix it. I tried manually uninstalling all of GarageBand (including the loops and instruments folders), then reinstalling iLife '11 and still have no change. Checked for updates in the App Store and it is running 6.0.5.
I searched around a little for those files and didn't find anything.
Update: I am running OS X 10.8.2 and if I log in as a new user it works fine. So it is probably an issue with my library folders . . .
Best Answer
The clue that explains how to fix your issue is that the applications works in a brand new user account. If it were a problem where the files were truly missing or a bug in the app - you would expect the same error in a new account. Unfortunately knowing that the problem lies in your library isn't much help due to the large number of files exist in most library folders.
To fix this, several different paths could be taken:
fs_usage
to try to track each file the GarageBand app opens in hopes of isolating the ones from ~/Library that it needs to have reset to default.Again, it's a bit like searching for a needle in the haystack and I realize this isn't the same as telling you "file X and cache directory Y are the culprit" since I don't actually have that level of detail on iLife 11 files.
Hopefully this will help you or someone else in narrowing down how to track corruption in a user account enough to decide to call the vendor or just spend the time you need to move music, photos, documents over to the new account and just hope the error doesn't crop up again.
I'd quit GarageBand app, make a back up of my system and then move these files/folders to the trash:
If that doesn't remedy the issue, then I'd call Apple if I had AppleCare or could visit a genius bar and then just hand migrate my user files to a new account. The latter should take less than 20 minutes to plan and the files can copy while you are eating dinner. Having a good backup is mandatory for any delete / trial / hand migration just in case you find something you forgot to migrate days or months later.