请求但未找到具有标识符Xcode.DVTFoundation.DevicePlatformMapping的扩展点

使用Cocos2d-x引擎在OS X中模拟iPhone 4时收到此警告。它被吐到终端中了，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: Method: -extensionPointWithIdentifier: Thread: {number = 1, name = main} Please file a bug at http://bugreport.apple.com with this warning message and any useful information you can provide.