💃 The Derived Data Dance 🕺

  1. Quit Xcode.
  2. Using Finder > Go > Go To Folder..., navigate to ~/Library/Developer/Xcode.
  3. screenshot of UI to go to folder
  4. Delete the DerivedData folder.
  5. Screenshot of moving folder to trash
  6. Restart Xcode.
  7. Solve a surprisingly large number of problems.