从XCode 5.0迁移到XCode 6.0后,项目无法运行,并出现以下错误.
An error was encountered while running (Domain = FBSOpenApplicationErrorDomain,
Code = 4)
Run Code Online (Sandbox Code Playgroud)
有什么建议?

创建的故事板XCode 4.5.1无法打开,XCode 4.2并显示以下错误消息.
This document "XXXXX.storyboard" could not be opened. Please use a newer version of Xcode. Consider changing the document's Development Target to preserve compatibility.
将部署目标更改为iOS 5.0不足Document Versioning(如谷歌搜索结果所示),但没有任何成功.
对此有任何修复?
安装XCode 6上Mavericks.它不会跑.将操作系统更新为Yosemite 10.10:现在Xcode.app(通过*.dmg安装)启动失败,错误消息通过App Store “Xcode” is damaged and can’t be opened. You should move it to the Trash.更新XCode 6.0.1.仍然没有运气.相同的错误消息.有修复的人吗?
