1. First look at Xcode's UUID and execute it at the terminal
Defaults Read/applications/xcode.app/contents/info Dvtplugincompatibilityuuid
Will get a bunch of UUID codes.
2. Locate the directory where the Xcode plugin is located
/users/"Your computer name"/Library/Application Support/developer/shared/xcode/plug-ins
Select installed plug-in such as: Vvdocumenter-xcode, right-click to Display the package contents , find info.plist
Locate the dvtplugincompatibilityuuids item, Add an item, and value for the previous Xcode uuid, save.
Restart Xcode will prompt "load bundle", "Skip bundle", here must choose "Load Bundle", or plug-in can not be used.
3. If the hand is accidentally hit the "Skip Bundle" solution
Find the plug-in installation path, continue to open in Info.plist Delete and command side inside the same UUID number, usually will be the last line, the line you added to delete
Restart Xcode after saving
Add the previous Xcodeuuid again. Plugin prompt reappears on reboot
After Xcode upgrade, plug-in failure repair