Errata

[quote]Try it out. Open MainWindowController.swift and change the mainWindowController property to a weak reference using the weak keyword:

var windowController: MainWindowController? weak var windowController: MainWindowController?
[/quote]
mainWindowController property is in the AppDelegate.swift file

You are correct. Thanks!

You try to get help from the forum or the viewer.

maxbet

Appreciate it. Cheers