This solution worked for me:
Update iPhoto to v 9.4.1.
Open iPhoto-->Preferences-->General-->Connecting camera opens: *CHANGE to "No Application".
Connect iPad and sync via iTunes
After sucessful sync of apps, music, photos, etc., open iPhoto and go back into Preferences and change the connecting camera opens option back to: iPhoto
Can't find an answer listed, if this is duplicate, ignore, please.
I fixed this issue: it does have to do with iPhoto.
To fix the issue, open iPhoto while pressing the option and command keys. You'll get a repair screen. Choose Rebuild Database.
Once the database is rebuilt, the error should disappear.