XCode iOS project only shows “My Mac 64-bit” but not simulator or device

转载自：http://stackoverflow.com/questions/8377970/xcode-ios-project-only-shows-my-mac-64-bit-but-not-simulator-or-device

问：

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This just started happening that my iOS project is only showing "My Mac 64-bit" rather than the Simulator or my iPhone to build to. I have no idea why this is happening. I do not think that I have changed anything. I have my project set to iOS 5 as the base SDK, but no matter what I do it seems to never show my any other options to build for. I have restarted Xcode a few times, and still no luck. Why is the happening? XCode 4.2, Build 4D199

答：

up vote 5 down vote

Often times this can happen when some files change without xcode's blessing. As in when switching between version control branches.Usually restarting Xcode fixes that problem. link | improve this answer edited  Dec 17 '11 at 2:24 answered  Dec 4 '11 at 20:58 Christian Schlensker 1,353 1 5 18