Objective-C: Compiler error when overriding a superclass getter and trying to access ivar

Question

I\'m working on building an iOS 6 app.

I have a class TDBeam which inherits from superclass TDWeapon.

The superclass

Answer 1

Synthesized ivars are not visible to subclasses, whether they are explicitly or automatically created: What is the visibility of @synthesized instance variables? Since they are effectively declared in the implementation file, their declaration isn't included in the "translation unit" that includes the subclass.

If you really want to access that ivar directly, you'll have to explicitly declare it (in its default "protected" form) somewhere that the subclass can see it, such as a class extension of the superclass in a private header.