My iPhone 4S won't back up to itunes because an "error" occurred.

I have a Macbook Air, and as of recently (a couple of weeks) my iPhone 4S suddenly won't back up to iTunes. Everything is up to date...I've restarted everything, restored my phone to the last backup, and then deleted my old backup. Nothing has worked...I'm super frustrated. Any suggestions out there?!

That's not as many as some....  However, best to import them into a photo app on your computer and delete them from the Camera Roll in the phone.  You can sync them back to the phone if you wish, but they no longer get backed up in iCloud (or iTunes) and the backup will be much smaller and faster.
http://support.apple.com/kb/HT4083

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