Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
iOS 6 Will Be Released To Developers Today! –
We have just finished our coverage of WWDC 2012 in which Apple showed off iOS 6. iOS 6 comes with over 200 new features which include a total overhaul of maps , Facebook integration and improvements to Siri.
The first beta of iOS 6 will be available to developers this evening and we will be the first to have a video demo online here