Your Apple ID needs a Verified Email
Though I have received invitations, and accepted them successfully, I'm suddenly getting a dialog box that says "Your Apple ID Needs a Verified Email Address". Well, I checked my account and all are verified. It's only Find My Friends that is throwing this error so far. Anyway, I can't get rid of this dialog.
iPhone 4, OS X Mountain Lion (10.8.2), 3 MacPros, 3 iMac 27's, iPads, etc