Storyboard.storyboard could not be opened. Could not read the archive.

Storyboard.storyboard could not be opened. Could not read the archive. 

Please use a newer version of Xcode. Consider changing the document's Development Target to preserve compatibility.

用低版本xcode打开高版本xcode下创建的项目时会出现这个错误。

解决办法：

1. 以源文件打开storyboard文件

2. 把version改为1.0

 

3. 保存文件，在interface builder中打开

这样就可以打开storyboard文件了