Iphone App在4.0或更低版本的SDK上崩溃
[英]Iphone App crashes on 4.0 or lower sdk
问题描述
this crash is happening before i can even break the code anywhere so i cant seem to find out why. 
崩溃发生在我什至无法在任何地方破坏代码之前，所以我似乎无法找出原因。 i get this error from the console 我从控制台收到此错误
dyld: Symbol not found: _OBJC_CLASS_$_GKAchievement Referenced from: /Users/chris_mellor88/Library/Application Support/iPhone Simulator/4.0.2/Applications/D9702DFF-6F6F-4F83-873C-16CE5D3C2861/Match U'm.app/Match U'm Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.0.sdk/System/Library/Frameworks/GameKit.framework/GameKit in /Users/chris_mellor88/Library/Application Support/iPhone Simulator/4.0.2/Applications/D9702DFF-6F6F-4F83-873C-16CE5D3C2861/Match U'm.app/Match U'm Data Formatters temporarily unavailable, will re-try after a 'continue'. dyld：未找到符号：_OBJC_CLASS _ $ _ GKA成就引用自：/ Users / chris_mellor88 / Library / Application Support / iPhone Simulator / 4.0.2 / Applications / D9702DFF-6F6F-4F83-873C-16CE5D3C2861 / Match U'm.app / Match U 'm预期在：/ Users / chris_mellor88 / Library / Application Support / iPhone Simulator / 4.0中的/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.0.sdk/System/Library/Frameworks/GameKit.framework/GameKit中.2 / Applications / D9702DFF-6F6F-4F83-873C-16CE5D3C2861 / Match U'm.app / Match U'm数据格式化程序暂时不可用，将在“继续”后重试。 (Not safe to call dlopen at this time.) （目前不安全调用dlopen。）
As you can see its a Data Formatters error but im not sure why. 如您所见，它是数据格式化程序错误，但我不确定原因。 The app runs perfectly on 4.1 and 4.2 sdk, it just seems to crash on any before that. 该应用程序可以在4.1和4.2 sdk上完美运行，在此之前它似乎都崩溃了。
2 个解决方案
解决方案1
2 2011-02-12 12:49:29
Check the documentation . 检查文档 。 GKAchievement available Available in iOS 4.1 and later. GKAchievement可用在iOS 4.1和更高版本中可用。
解决方案2
2 2011-02-12 12:50:17
您正在尝试访问Game Kit（ GKAchievement类），但仅在iOS 4.1或更高版本上可用。
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