Error #1069: Property easeOut not found on gs

Hello all,

I am using the TweenLite engine (Quart)…

I am receiving the following Reference Error:

ReferenceError: Error #1069: Property easeOut not found on gs.TweenLite and there is no default value.
at gs::TweenLite()
at gs::TweenLite$/to()
at main_fla::MainTimeline/initSite()
at main_fla::MainTimeline/frame1()

I have used the following import statement in TweenLite.as :

import gs.easing.Quart;
import gs.easing.Quart.easeOut;

and beginning at line 356 of TweenLite.as the following:

public static function easeOut(param1:Number, param2:Number, param3:Number, param4:Number) : Number
{
var _loc_5:* = param1 / param4;
param1 = param1 / param4;
return (-param3) * _loc_5 * (param1 - 2) + param2;
}// end function

I have used the following import statement in MainTimeline.as :

import gs.easing.Quart;
import gs.easing.Quart.easeOut;

I can’t seem to figure out what I am doing wrong…