Connecting Outlets and Actions to Super View Controller Stopped Working

Given a class TopViewController that has an @IBAction that prints "Wassup Y'all" to the screen, when I create another class BottomViewController that inherits from TopViewController, then I can use the Storyboard to connect scene elements from BottomViewController to Outlets and/or Actions in TopViewController.


As of yesterday, this has suddenly stopped working and I have no idea what's wrong.


I've tried

  • Cleaning
  • Deleting DerivedData
  • Restarting Xcode
  • Restarting Macbook


Nothing works.


Any idea how to get out of this state?

Connecting Outlets and Actions to Super View Controller Stopped Working
 
 
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