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.
I Was having this issue with an iPhone 5, iTunes 18.104.22.168, and iOS 8.1.3. My main issue was that it was preventing my from syncing my checked music under the Music tab. Itunes would for through a 6-step sequence after I pressed "Sync" and throw this error, never actually updating my iPhone with the music. If this is what you're trying to achieve, I found a silly workaround. You'll notice that the step 6 of 6 stays printed on iTunes' bar for a split second after the error message appears. If you can hit return (to select "Okay" on the dialog box) before "Step 6 of 6" disappears and reverts to the Apple logo, iTunes will sync your music. You have to do this pretty quickly, so stay on your toes and try it a couple times to see if it works for you. I hope this helps! What a dumb issue...