Question

This question has been asked in various forms on here before, but I cannot seem to figure out what the compiler is complaining about; there are no other save: methods in the NSUserDefaultsController class or any of its super classes.

The method in which this warning occurs is an IBAction attached to the OK button of my Preferences window.

I like no warnings so it’s bothering me a bit; can anyone help get rid of it?

EDIT: as pointed out by @Peter, the compiler doesn’t know that sharedUserDefaultsController returns an NSUserDefaultsController object. This is fixed using:

   NSUserDefaultsController *userDefaultsController = [NSUserDefaultsController sharedUserDefaultsController];
   [userDefaultsController save:sender];

Answer 1

The method sharedUserDefaultsController, according to the documentation, is declared as

+ (id)sharedUserDefaultsController

So there’s no way to know it’s an NSUserDefaultsController here. Thus any save method could be addressed, I think.