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