摘要：
The document "ViewController.xib" could not be opened. Could not read archive.Please use a newer version of Xcode. Consider changing the document's Development Target to preserve compatibility.Xcode 升到5.0后。再回去用4.6打开的时候 .xib文件就会提示这个错误解决办法：用5.0打开project. 选择.xib文件。然后在右边的列表里找到Interface Bui 阅读全文
