Is there a way to find out what class needs to be imported for my script to work?

I am getting a type error for this line of code:
Code:
var TweenTarget:DispayObject=e.target as DisplayObject;
I have imported:
Code:
import flash.display.DisplayObject
This is the error:
Code:
1046: Type was not found or was not a compile-time constant: DispayObject.
Any ideas?

Thanks