1、删除主磁盘的：资源库(Library)/ Preferences/com.apple.dt.Xcode.plist
2、删除用户下的：/Users/administrator/Library/Preferences/com.apple.dt.xcodebuild.plist
3、删除用户下的：/Users/administrator/Library/Preferences/com.apple.dt.Xcode.ITunesSoftwareService.plist
4、删除用户下的（没找着）：/Library/Application Support/Xcode
5、删除用户下的：/Users/administrator/Library/Developer/CoreSimulator
6、删除用户下的：/Users/administrator/Library/Developer/Xcode
7、删除用户下的：/Users/administrator/Library/Developer/XCTestDevices
8、删除用户下的：/Users/administrator/Library/Developer/CoreDevice
9、删除用户下的：/Users/administrator/Library/Developer/DeveloperDiskImages
10、删除用户下的：/Users/administrator/Library/Developer/RemotePairing