Using SneakyInput - Does not have self.userInteractionEnabled = YES; self.multipleTouchEnabled = NO;

Question

I'm trying to implement the SneakyInput into my Cocos2D and Box2D game and I get errors in the SneakyJoystick and SneakyButton files where:

self.userInteractionEnabled = YES;
self.multipleTouchEnabled = NO;

causes an error, and these classes inherit CCNode.

Can anyone help please?

UPDATE

Error says:

SneakyJoystick.m:56:14: Property 'userInteractionEnabled' not found on object of type 'SneakyJoystick *'


SneakyJoystick.m:57:14: Property 'multipleTouchEnabled' not found on object of type 'SneakyJoystick *'