I am extremely frustrated. I'm following a tutorial and mimicing it on my own. I've been able to sort out most of the errors so far but this one has me stumped. I have tried replacing all of the class files with the tutorial specimen ones but i still get the error.

TypeError: Error #1009: Cannot access a property or method of a null object reference.
     at com.senocular.utils::KeyObject/construct()
     at com.senocular.utils::KeyObject()
     at com.asgamer.basics1::Ship()
     at com.asgamer.basics1::Engine()

Now, not really understanding the error properly I paste dumped the files online for you to look at.

Ship class: textbin.com/78z35

Engine class: textbin.com/32b24

KeyObject class: textbin.com/p2725

As the error still occured when using the specimen class files I really have no idea where to begin. I will gladly try out any suggestions (although later on, i'm tired now ;).

Thanks very much.