I have strange problem when I try to add new item to NSArrayController. My XIB file have NSView, NSArrayController and two custom buttons (add & remove). I think my bindings are OK.
When press "Add" button program raises Exception.
I set a breakpoint to objc_exception_throw
and locate the problem in
[NSArrayController _executeAdd:didCommitSuccessfully:actionSender:]
One more thing. Source for NSArrayController is Entity, not Class.