Swift compiler error when programming a GCkeyboard for my Mac game

[ryanagamalian]

This is the code I am using for this project I am using the apple developer documentation but it keep getting the same error codes saying this.

[mayoff (Rob Mayoff)]

There is no class named GCKeyboardDevice. You probably want to use GCKeyboard, which implements the GCDevice protocol.

[ryanagamalian]

Thank you