AS3 中的"TypeError: Error #1010: A term is undefined and has no properties"

Question

我正在使用Adobe Animate CC为我们的论文创建一款Android游戏，每次我测试我的作品时，一开始它运行良好，但当我转到主游戏时，出现了一个错误:

Error #1010: A term is undefined and has no properties at RECOVER_RECOVER_dmthesis_demo_ver__paggumanarename_Scene14_fla::MainTimeline/frame1()[RECOVER_RECOVER_dmthesis_demo_ver__paggumanarename_Scene14_fla.MainTimeline::frame1:160]

这是我的代码(包括注释代码):

import flash.events.MouseEvent;
import flash.display.MovieClip;
import flash.events.Event;
import flash.display.Stage;
import flash.utils.Timer;

gril.gotoAndStop('a');

var gril:MovieClip = new MovieClip;
var linya:MovieClip = new MovieClip;
var timer:MovieClip = new MovieClip;
var scorer:MovieClip = new MovieClip;
var xDistance:Number 
var yDistance:Number
var fl_SecondsToCountDown:Number = 5;
var fl_CountDownTimerInstance:Timer = new Timer(1000, fl_SecondsToCountDown);
var vx:Number = 5; 
var vy:Number = 5;
var bg:MovieClip = new MovieClip;
var bg2:MovieClip = new MovieClip;
var qnaWin:MovieClip = new MovieClip;
var corekWin:MovieClip = new MovieClip;
var maliWin:MovieClip = new MovieClip;
var gameOverWin:MovieClip = new MovieClip;
//var btnPause:Button = new Button;
//var forward:Button = new Button;

bg.visible = true;
bg2.visible = false;
gril.visible = true;
linya.visible = true;
btnPause.visible = true;
pauseWin.visible = false;
qnaWin.visible = false;
corekWin.visible = false;
maliWin.visible = false;
scorer.visible = false;
timer.visible = false;
forward.visible = true;
gameOverWin.visible = false;

//var rightpressed:Boolean = new Boolean(false);
//var leftPressed:Boolean = new Boolean(false);
//var linkspeed:Number = 10;
//var contactApak: Boolean =false;

/*else if(keyEvent.keyCode == Keyboard.LEFT){
leftpressed = true;
}*/

//forward.enabled = true;
forward.addEventListener(MouseEvent.CLICK, myClickReaction); 
// speeds ALONG NYPOTENUSE
function myClickReaction (e:MouseEvent):void {  
     vx = mouseX - gril.x;
     vy = mouseY - gril.y; 
     addEventListener(Event.ENTER_FRAME, onEnterFrame); 
  gril.x+=10;
     gril.gotoAndStop('i');
}
/*stage.addEventListener(MouseEvent.CLICK, keyDownHandler);
function keyDownHandler(event:MouseEvent):void{
if(event == Keyboard.RIGHT){
rightpressed = true;
  }
}*/

function onEnterFrame(event:Event):void { 
     //mc increments by 5 until it reaches mouse - mc (ie the distance) 
     gril.x += vx; 
     gril.y += vy; 
     xDistance = Math.abs(mouseX - gril.x); 
     yDistance = Math.abs(mouseY - gril.y); 
     trace (xDistance) 
     if (xDistance == 0 ) { 
          removeEventListener(Event.ENTER_FRAME, onEnterFrame); 
     } 
}
/*forward.addEventListener(MouseEvent.CLICK, lakad);
function lakad(event:MouseEvent):void{
if(event.keyCode == Keyboard.RIGHT){
rightpressed = false;
gril.gotoAndStop('a');
}
}*/
/*else if(keyEvent.keyCode == Keyboard.LEFT){
leftpressed = false;
mcgril.gotoAndStop("Stand Left Frame");
}*/


/*stage.addEventListener(Event.ENTER_FRAME, gameLoopi);
forward.addEventListener(MouseEvent.CLICK, gameLoopi);
function gameLoopi(e:Event):void{
gril.x+=10;
gril.gotoAndStop('i');
}*/
/*else if(leftpressed){
linkMC.x-=linkspeed;
linkMC.gotoAndStop("Walk Left Frame);
}*/
if(linya.hitTestObject(gril)){
  qnaWin.visible = true;
}
/*if(apak.hitTestPoint(mcgril.x,mcgril.y+15,true)){
  contactApak=true;
}
else{
  contactApak=false;
}}*/
//btnPause.enabled = true;
btnPause.addEventListener(MouseEvent.CLICK, pois);
function pois(event:MouseEvent):void{
  stage.frameRate = 0;
  bg.visible = true;
  bg2.visible = false;
  gril.visible = false;
  linya.visible = false;
  btnPause.visible = false;
  pauseWin.visible = true;
  qnaWin.visible = false;
  corekWin.visible = false;
  maliWin.visible = false;
  scorer.visible = false;
  timer.visible = false;
  forward.visible = false;
  gameOverWin.visible = false;
}

pauseWin.btnResume.addEventListener(MouseEvent.CLICK, gorau);

function gorau(event:MouseEvent):void{
  bg.visible = true;
  bg2.visible = false;
  gril.visible = true;
  linya.visible = true;
  btnPause.visible = true;
  pauseWin.visible = false;
  qnaWin.visible = false;
  corekWin.visible = false;
  maliWin.visible = false;
  scorer.visible = false;
  timer.visible = false;
  forward.visible = true;
  gameOverWin.visible = false;
}

pauseWin.btnQtm.addEventListener(MouseEvent.CLICK, kweet);

function kweet(event:MouseEvent):void{
  gotoAndStop(1, "Scene 1");
}

/*var objectoriginalX:Number;
var objectoriginalY:Number;*/

**corekWin.btnGo.addEventListener(MouseEvent.CLICK, gorabelx);**//this is in the line 160, the main problem

function gorabelx(event:MouseEvent):void{
  bg2.visible = true;
  bg.visible = false;
  //mcbackground.room.pinto(scaleY =-1);
  }
//timer.timee.text=fl_SecondsToCountDown.toString();
fl_CountDownTimerInstance.start();

fl_CountDownTimerInstance.addEventListener(TimerEvent.TIMER, foo);

function foo(event:TimerEvent):void
{
  fl_SecondsToCountDown--;
  timer.timee.text=fl_SecondsToCountDown.toString();
  trace(fl_SecondsToCountDown + " seconds");
  if(fl_SecondsToCountDown == 0){
  gameOverWin.visible = true;
  }
}

gameOverWin.btnTry.addEventListener(MouseEvent.CLICK, tryk);

function tryk(event:MouseEvent):void{
  bg.visible = true;
  bg2.visible = false;
  gril.visible = true;
  linya.visible = true;
  btnPause.visible = true;
  pauseWin.visible = false;
  qnaWin.visible = false;
  corekWin.visible = false;
  maliWin.visible = false;
  scorer.visible = false;
  timer.visible = false;
  forward.visible = true;
  gameOverWin.visible = false;
}

哦!我的代码太长了。我多次检查了我的代码，没有任何问题，我也调试了它，这种错误仍然出现。我已经声明了corekWin(影片剪辑)但是corekWin内部的btnGo(另一个允许点击的影片剪辑)不需要声明它，对吧?因为corekWin已经被声明了

我试图修复这个错误，不幸的是，它失败了。我已经仔细检查过了。你认为这段代码有什么问题?

Answer 1

关于这一行:

var corekWin:MovieClip = new MovieClip;

您刚刚创建了一个新的空白(空) MovieClip对象，引用名称为corekWin，因为您从未做过corekWin.addChild(btnGo);，因此您不能说;

corekWin.btnGo.addEventListener(MouseEvent.CLICK, gorabelx);

由于corekWin是空的new Movieclip，它不包含任何btnGo对象。

可能的解:

如果corekWin是你的库 (ctrl+L)中的一个MovieClip，那么你应该给它一个链接名称(右键单击并转到属性并给出一个链接名称，例如叫它mc_corekWin)。

现在在你的代码中，你可以实例化现有的MovieClip，而不是创建一个新的空的…:

var corekWin : mc_corekWin = new mc_corekWin();

在调整任何视觉方面之前，通过stage.addChild(corekWin);将其添加到舞台上，然后您可以执行corekWin.visible或corekWin.alpha等等。

编辑:

如果你的MC已经放在舞台上(在运行时)，那么你不需要创建new Movieclip(甚至new mc_corekWin)变量。只需通过您给它的实例名称引用MC。

• 要撤销链接只需回到Library中的MC属性并取消勾选"Export for Actionscript"框。

• 要添加实例名称，单击MC(在舞台上单击它，而不是库)并打开Properties选项卡(ctrl+F3)，您将看到为您首选的名称准备的部分。您输入的名称(按Enter键更新)将在代码中使用。

基本上，如果一个MC xyz已经在舞台上，你不需要var xyz:MovieClip = new MovieClip;(这会覆盖舞台上的MC)来通过代码控制它，只需要给它一个实例名，然后使用该名称在代码中引用MC。

可能你不需要像gril和linya这样的变量为new MovieClip。尝试取消注释(使用//)，看看它们现在是否变得"不可见"。