使用Cocos2d-x引擎在OS X中模拟iPhone 4时收到此警告。它正在向终端吐口水，我必须执行Control-C才能收回终端。整个警告是这样的：
ios-sim-xcode6[30350:2161521] [MT] DVTAssertions: Warning in /Library/Caches/com.apple.xbs/Sources/DVTFrameworks/DVTFrameworks-9542/DVTFoundation/PlugInArchitecture/PlugInManager/DVTPlugInManager.m:259
Details: Requested but did not find extension point with identifier Xcode.DVTFoundation.DevicePlatformMapping
Object: <DVTPlugInManager: 0x7faa9a51dda0>
Method: -extensionPointWithIdentifier:
Thread: <NSThread: 0x7faa9a40bdd0>{number = 1, name = main}
Please file a bug at http://bugreport.apple.com with this warning message and any useful information you can provide.