XCode 5.0.1 and iOS 5.1 simulator issue
Unfortunately, iOS Simulator 5.0 and 5.1 don’t work on Mavericks. The reason for this is best explained by gparker on the developer forums (https://devforums.apple.com/message/911139#911139): The iOS simulator does not duplicate some of the low-level parts of iOS. For example, it uses the host OS X’s kernel instead of trying to virtualize the iOS kernel. The … Read more