title: Can't create IBOutlet for UIBarButtonItem in a UIViewController
body: <p>I'm trying to create an IBoutlet from a UIBarButtonItem to a UIViewController, but when ctrl+clicking and dragging to the controller, I see no indicator whatsoever, and thus it's impossible to create it. Not sure what I'm doing wrong.</p>
  
  <p>Here's the screenshot, in case it could clear something up:</p>
  
  <p><img src="https://i.stack.imgur.com/35iae.png" alt="enter image description here"></p>
  
  <p>Thanks a lot in advance!</p>
  
  <p>EDIT: I also tried to create the IBOutlet manually with <code>@property (weak,nonatomic) IBOutlet UIBarButtonItem *barButtonItem;</code> and then ctrl+clicking and dragging, but same result.</p>