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我在 xcode 4.5 中创建了一个项目但现在我有 xcode 4.2,在 Xcode 4.2 中我无法打开项目的 nib 文件。当我单击 nib 文件时,它显示以下错误消息。
进入 xib-->showfileInspectore ->
取消选中使用自动布局,如下图所示