I got the same error today after adding some new music. I fix it doing the following:
1. Go to the music forder
2. Change the name iTunes to iTunes.old
3. Open iTunes, that clears whatever was wrong and creates a new library...
4. Close iTunes
5. Delete the new iTunes folder the application created... it is blank...
6. Rename back your library from iTunes.old to iTunes
7. Open iTunes
That worked for me, if you are using a remote library or something it should work the same...
As i said it worked for me, don't blame me if you loose data, be sure about what you're doing...
I hope this helps.
I found that deleting the file "iTunes Library Genius.itdb" from the itunes folder, emptying the trash, and restarting solved this same problem for me. This happened today on iTune 9.1.1
Upon itunes opening up successfully the after restart, the file "iTunes Library Genius.itdb" was rebuilt by the program and everything I have it still there in it's correct place (ratings, play count, etc)
After removing the file "iTunes Library Genius.itdb" it opened. HOWEVER, upon syncing my iPhone, iTunes "locked up" and I had to force quit. I made another attempt to open iTunes and received the 13014 error code once again. This time removing the "iTunes Library Genius.itdb" file did not work. I attempted a reboot, and removing the file once more, but still get the same error code. I get the same problem when changing over to my "Backup" disk.
Both of my iTunes (Main and Backup) are on external hard drives.
I am using the latest version of iTunes (10.2.2) running Snow Leopard 10.6.7. MBP 17' 3.06 gig processor, 8 gigs of RAM, 7200 RPM HD. This problem exists when accessing with my other MBP over a wireless LAN. using the same iTuns library
I'm having this same problem since upgrading to 10.3.1. I've tried deleting the genius.itdb file (I didn't see a journal one) and also reinstalling iTunes but still can't get it to open. I keep getting the 13014 error and iTunes won't open. I am on a Macbook Pro with music stored on an external hard drive. Can anyone help?