Xcode - Terminating with uncaught exception of type NSException when a button is pressed

Question

I\'m new to app development and I\'m following Apple\'s tutorial to learn. I\'ve looked through a lot of questions asked about this type of error but none of them are helpin

Answer 1

If you're using Swift 3, the line in question would have to be changed to:

button.addTarget(self, action: #selector(StarRatingControl.ratingButtonTapped), for: .touchDown)