Is it possible to use XCode6 beta with an IOS 7.1 SDK? The new tools are much nicer but I need to build for IOS7
So we had a very similar issue, our goal was to debug an issue that only appears on iOS 8 (with an app built in xCode 5 on the iOS 7.1 SDK). We were trying to use xCode 6, but found it too unstable, and then decided to go back to xCode 5 and debug using UIAlertNotifications (as we could previously not connect our iOS 8 device to xCode 5)
After connecting our iOS 8 device to xCode 6, when we re-opened xCode 5, our iOS 8 device was recognized and we were able to debug using NSLog statements (break points still caused our app to crash - making it apparent that the issues related to break points are with iOS 8 rather than xCode 6 as others have suggested)
I hope this info is of some help to others out there!