Undo “New Group from Selection” project

问题描述:今天在做TAG App 时在Project上不小心“New Group from Selection” 了下。然后无法撤销了。。。Project上就一直顶着一个New Group。

问题解决:

  1. close xcode
  2. right click on your project's .xcodeproj, then click "Show Package Contents"
  3. inside .xcodeproj, remove the project.xcworkspace
  4. save it and re-open your xcode project and it would be rebuild the file