Can't connect IBAction in Xcode

Question

When I drag from a button on the storyboard to my view controller Swift file, I only get the option to insert an Outlet or Outlet Collection.

Similarly, if I create the

Answer 1

Alright, it's 2019 and this problem still happens and if anyone is here still looking for a solution, the only way i could get it to work is to:

• Write your IBAction function in the extension
• In Interface Builder, tap File's owner or the main view
• On the Right toolbar click on the Connections Inspector

• go down the list and find the IBAction you created, sitting there all alone and not connected to anything
• Click on the empty circle next to it and drag to your sad sad button

• See that sad button is now happy again and connected to something