问题
Did I miss something? I updated my iPhone to 5.1 and now Xcode won't install developer apps on it. Here's from the Organizer:
OS Installed on User's iPhone 5.1 (9B179)
Xcode Supported iOS Versions Latest 5.0 (9A334) 4.3 4.2
回答1:
The current Xcode doesn't have the latest iOS 5.1 SDK (not to mention it looks like Apple took down the beta builds). You'll have to wait until Apple updates Xcode.
回答2:
You have to download Xcode 4.3.1, but they try to force it through the app store and a lot of people are having problems with it. If you want to get the download directly, go to Xcode section of the iOS dev center: https://developer.apple.com/xcode/index.php
Don't click the "View in Mac App Store" button - instead click the link at the bottom that reads: Looking for additional developer tools? View Downloads
Log in. Unfortunately, paid members only.
The 3rd or 4th item on the list will be Xcode 4.3.1 for Lion. You can download the DMG there.
Hope this helps!
来源：https://stackoverflow.com/questions/9608854/xcode-and-ios5-1-on-iphone-wont-work