Flash 1172:定义caurina。转换：找不到Tweener

嗨，我是flash新手，我正在测试一个来自网站的flash代码 但它会产生如下错误

 Scene 1, Layer 'Layer 1', Frame 1, Line 1  1172: Definition caurina.transitions:Tweener could not be found.
 Scene 1, Layer 'Layer 1', Frame 1, Line 1  1172: Definition caurina.transitions:Tweener could not be found.
 Scene 1, Layer 'Layer 1', Frame 1, Line 31 1120: Access of undefined property Tweener.
 Scene 1, Layer 'Layer 1', Frame 1, Line 41 1120: Access of undefined property Tweener.
 Scene 1, Layer 'Layer 1', Frame 1, Line 44 1120: Access of undefined property Tweener.

我的代码是：

import caurina.transitions.Tweener;

var last_item:Number;
var first_item:Boolean = true;
var rand_num:Number;
var timer:Timer = new Timer(4000, 1);

// Create MovieClips

for(var i=0; i<8;i++) {
   var newNum = i + 1;
   var clip = new Array();
   clip[i] = new item();
   clip[i].name = "clip" + newNum;
   clip[i].x = 337;
   clip[i].dyn_text.text = newNum;
   addChild(clip[i]);
}

// Begin scrolling of content

auto_scroll();

function auto_scroll():void  {
   //Generate random number between 1 and array length
   rand_num = randomNumber(1, clip.length);     
   //Generate another random number until is doesn't equal the last one
   while(rand_num == last_item)  {
       rand_num = randomNumber(1, clip.length);
   }
   //Only scroll in content if item is the first one
   if(first_item == true)  {
       Tweener.addTween(getChildByName("clip" + rand_num), {x: 10, time:1, transition:"Linear"});                          
       first_item = false;
       last_item = rand_num;
   }
   timer.addEventListener(TimerEvent.TIMER, transition_items);
   timer.start();
}

function transition_items(event:TimerEvent):void  {
   // Scroll last item out of view and scroll new content in
   Tweener.addTween(getChildByName("clip" + last_item), {x: -336, time:1, transition:"Linear", onComplete: function():void  {getChildByName("clip" + last_item).x = 337;} });       
   Tweener.addTween(getChildByName("clip" + rand_num), {x: 10, time:1.2, transition:"Linear", onComplete: function():void  {last_item = rand_num;auto_scroll()} });
}

function randomNumber(low:Number=0, high:Number=1):Number  {
    return Math.floor(Math.random() * (1+high-low)) + low;
}

import caurina.transitions.Tweener；
var最后一项：编号；
变量第一项：布尔值=真；
变量rand_num：数字；
var定时器：定时器=新定时器（4000，1）；
//创作电影唇
对于（var i=0；i在Game.fla所在的目录中创建一个新文件夹，命名该文件夹Classes
之后，将caurina文件夹放入Classes文件夹，现在转到文件->动作脚本设置->源路径单击（+）并写入/Classes

这对我起了作用