iPhone 4S OS 6.0
Mac OS 10.7.5
I have also done the 9.4.1 update for iPhoto recently,
And wanted to get this greyed selection in iTunes to finally work tonight
So I got rid in iPhoto of all the "&" ampersands (apparent or meta)
Still not working, the box "album, event and faces" is still greyed.
The weird part is that doing all this I checked, but never found the 'iPod cache folder' in the Library. So I have never been able to try to erase it, so it would build a new one...
Still unable to update my albums on the iPhone...
Can you hear me Apple Support ???
I had the same Error in iTunes while syncing my iPhone 4S running iOS 6 to my MacBook Pro running OSX 10.8.3 via USB. The thing that seemed to fix it for me was launching iPhoto after it was updated to v9.4.3 via OSX Software Update... iPhoto started up with "Updating database" which (I'm just purely guessing here) fixed the problem with the "&" symbol in my iPhoto titles. I then closed iPhoto, launched iTunes, and clicked on my iPhone 4S in the left column, then clicked Sync... and the pesky "The iPhone "(my iPhone name)" cannot be synced. An unknown error occurred (1140)." error disappeared! 8-)
Professional driver, closed course.