Xcode crashes on launch

If the delete of ~/Library/Developer/Xcode/DerivedData is not working for you, try this steps to remove xcuserdata:

• open a Finder window and navigate to your project
• right-click on the .xcodeproj OR .xcworkspace file
• select Show Package Contents
• a new window appears
• delete a folder called xcuserdata

Delete ~/Library/Developer/Xcode/DerivedData by running this command in terminal:

rm -r ~/Library/Developer/XCode/DerivedData

If that doesnt work, At this point and with given info, all I could recommend to delete and reinstall Xcode.