I just updated to iOS 4.3 on my iPhone, which is connected to a MacBook Pro, and when the installation was done, tried to sync. The sync stalled at step four of four on syncing photos, with a message telling me that the sync could not complete because "The required file cannot be found."
I called Apple right away, and the support rep, after checking with a few higher levels of tech support, asked me to uncheck the box to sync photos. The sync worked. I was then told that the problem had to be with one of the photos in my iPhoto library and that I would have to find it using the process of elimination. This didn't sound like fun since I have over 3600 photos and this would take quite a long time to accomplish.
I tried to find a simpler solution and found