XCode 4.6.3 crash everytime I open it on OS X 10.9.3

Question

I updated Mavericks 10.9.2 to 10.9.3 and downloaded Xcode 6 beta. One of my project is still in Xcode 4.6.3. So now whenever I open this project Xcode crashes with the following

Answer 1

I had similar issue. This can be fixed using

`sudo mv /System/Library/PrivateFrameworks/MobileDevice.framework{,-saved}`

This will ask for system component installation and then Xcode starts working.

I recommend to use latest version of Xcode 6.x.