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在我安装 XCode 6 GM 后,由它编译的应用程序开始在 Metal Framework device.newDefaultLibrary() 调用中返回 nil。有什么问题?
将您的设备更新到 iOS 8 GM,它将停止失败。
尝试使用 - (nullable id)newDefaultLibraryWithBundle:(NSBundle *)bundle error:(__autoreleasing NSError **)error