iOS Simulator 8.1 SDK missing in XCode 6.2

Question

Developers I\'m supporting just got new Macs with XCode 6.2 (Version 6.2 (6C131e)).

In running xcodebuild we\'re having failures in running against any earlier version

Answer 1

It looks like Xcode 6.2 is having an issue recognizing any additional simulators:

xcodebuild[4554:1175053] [MT] iPhoneSimulator: SimVerifier returned: Error Domain=NSPOSIXErrorDomain Code=53 "Simulator verification failed."  
UserInfo=0x7fe952514ca0 {
NSLocalizedFailureReason=A connection to the simulator verification service could not be established.,  
NSLocalizedRecoverySuggestion=Ensure that Xcode.app is installed on a volume with ownership enabled.,  
NSLocalizedDescription=Simulator verification failed.}

Some in the Apple Developer Forums are experiencing the same issues. A radar has been filed, and one possible solution of:

"Finally success by nuking /Library/Deverloper/* and re-installing Xcode."