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

For reference, I've decided to have a look at the sample and got a similar issue.

I'm using XCode 8 + Swift 3 and these are my changes in order to get it working:

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

Note: considering the file name "RatingControl.swift".

I hope it help =D