Many promised fixes online, but this is the one that works. Just leaving this solution here for posterity: https://discussions.apple.com/thread/4410910
“What I did was to rename the file called conflicts.synconflicts I renamed it to conflictsold.synconflicts the .synconflicts is the extension so you can’t rename that. I then restarted my computer, opened iTunes and connected my iPhone.
In the dream, Trump ordered the creation of a new $200 bill, with his face on it. The bills were larger than regular bills, and made of plastic so the couldn’t get wrinkled. But no one would use them and no stores would accept them, because no one believed they were real.
Does anyone else, when driving at night, look at the taillights of the other cars and imagine them, along with the car’s other features, into cartoonish faces? (Pro tip: The taillights are not always the eyes!)