How to access IBOutlets declared in superclass?

Question

I\'m currently refactoring a couple of view controllers that share a few IBOutlets and IBAction methods. I moved the outlet declarations and the

Answer 1

I ran into a similar problem with a superclass, but it was due to a bug in Xcode (8.2) where Interface Builder doesn't show outlets in the Connection Inspector if those outlets have been declared with a _Nullable type annotation for Swift compatibility.

Using nullable inside @property's parentheses appears to work around the problem.

This Xcode bug seems to affect outlets in any class (ie. not just superclasses).