Xcode 6: iOS 8.1 The Developer Disk Image could not be mounted

Question

I keep getting this error, whenever I try to run my app on my iphone, which is running iOS 8.1.-

The Developer Disk Image could not be mounted.

User’s iPhone may be running a version of iOS that is not supported by this version of Xcode.

I tried restarting my mac and xcode, but problem persists.

Answer 1

Xcode 6 only contains the iOS 8.0 SDK.

If you're running iOS 8.1 on your phone, then you'll need to upgrade to Xcode 6.1, which contains the iOS 8.1 SDK.