iTunes Unable To Load Data Class Information

Posted by on March 16, 2011 Leave a comment (7) Go to comments

If you’ve installed XCode 3.2.6 or 4.0 recently after previously installing iTunes 10.2.1 you may have seen this message when trying to sync: “iTunes was unable to load data class information from Sync Services. Reconnect or try again later.”

To fix this problem you’ll need to reinstall iTunes. Download iTunes from Apple, run the pkg, restart, and it should be fixed. Irritating, but at least there’s an easy resolution.

Posts
  1. James Elliott March 21, 2011 at 9:18 am

    Thanks so much! There were many hits out there for this error message, but yours was the only one that was relevant and solved my problem. Hopefully Apple will iron this out in a future update, but in the mean time, I can sync my phone again.

  2. michael March 25, 2011 at 7:01 pm

    Thanks,
    It worked for me too…
    The question is though, if the installed Xcode 4.0 is affected by iTune re-installation?

  3. Ray Krueger March 28, 2011 at 6:19 pm

    Thanks Paul, exactly what I needed.

  4. Robert Young March 30, 2011 at 9:12 pm

    Your suggestion fixed a problem I just ran into. THANKS!!!

  5. stefano April 8, 2011 at 11:46 am

    :razz: perfect! problem fixed. Thanks a lot.

  6. Joe April 26, 2011 at 7:29 pm

    I agree with James Elliott! There were many hints out there that were significantly more complex than this one. This was simple (and therefore elegant). Thanks

  7. Tom May 25, 2011 at 12:14 pm

    THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz: THANKS!!! :razz:

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