ITunes: Error 5002 after update to iTunes 8.0 FIXED

Ohh come on! Not again...

After an upgrade to iTunes 8.0 I cannot update my apps anymore. All I get is "unknown error 5002".

To save you some time, these fixes DON'T work:

- Repair Permissions
- Signing in and out of your account
- Changing the settings from "One-Click-Shopping" to "Use Cart" and back again or vice-versa
- Reinstalling iTunes

I keep you posted about a fix. Subscribe to my RSS-Feed for latest updates.

Update: Found the error.

Seems that I had a bad app in my library (TapTap Revenge). If you scroll through your library, have a look for an App that only shows a generic icon. Delete this app and everything should be back to normal. You can redownload it later from the appstore at no charge.