How to fix warnings 1082 (migration issue) and 1008 in Adobe Animate CC AS3?

[cjyoon1227]

Hello everyone! When I debug the project, I got received 222 warnings and it contain only two warnings:

Warning: 1082: Migration issue: Method %s will behave differently in ActionScript 3.0 due to the change in scoping for the this keyword. See the entry for warning 1083 for additional information.

And the another one:

Warning: 1008: return value for function '%s' has no type declaration

Here's my screenshot of warnings (it's too many):

And here's my code in AS file:

package {

   import flash.display.*;
   import flash.text.*;
   import flash.events.Event;
   import flash.display.MovieClip;
   import flash.events.MouseEvent;

   public class Main extends MovieClip {
   public var mainmenu: MainMenu = new MainMenu();
   public var scrollinstructwin: ScrollInstructWin = new ScrollInstructWin();
   public var startopt: StartOpt = new StartOpt();
   public var learnopt: LearnOpt = new LearnOpt();
   public var newload: NewLoad = new NewLoad();
   public var propocon: PropoCon = new PropoCon();
   public var setcon: SetCon = new SetCon();
   public var relationcon: RelationCon = new RelationCon();
   public var scrollstorywin: ScrollStoryWin = new ScrollStoryWin();

   public function Main() {
   super();
  addChild(mainmenu);

  mainmenu.x = 350;
  mainmenu.y = 290;

  mainmenu.btnStart.addEventListener(MouseEvent.CLICK, start);//warning 1082
  mainmenu.btnInstruct.addEventListener(MouseEvent.CLICK, instruct);
   }
   public function start(event: MouseEvent) {//warning 1008
  removeChild(mainmenu);
  addChild(startopt);

  startopt.x = 350;
  startopt.y = 290;

  startopt.btnLearn.addEventListener(MouseEvent.CLICK, learn);
  startopt.btnPlay.addEventListener(MouseEvent.CLICK, laro);
  startopt.btnBack.addEventListener(MouseEvent.CLICK, back);
   }
   public function instruct(event: MouseEvent) {
  removeChild(mainmenu);
  addChild(scrollinstructwin);

  scrollinstructwin.x = 36.20;
  scrollinstructwin.y = 21.50;

  scrollinstructwin.btnGi.addEventListener(MouseEvent.CLICK, gi);
   }
   public function gi(event: MouseEvent) {
  removeChild(scrollinstructwin);
  addChild(mainmenu);
   }
   public function back(event: MouseEvent) {
  removeChild(startopt);
  addChild(mainmenu);
   }
   public function learn(event: MouseEvent) {
  removeChild(startopt);
  addChild(learnopt);

  learnopt.x = 350;
  learnopt.y = 290;

  learnopt.btnPropo.addEventListener(MouseEvent.CLICK, propo);
  learnopt.btnSets.addEventListener(MouseEvent.CLICK, sets);
  learnopt.btnRelations.addEventListener(MouseEvent.CLICK, relations);
  learnopt.btnBack3.addEventListener(MouseEvent.CLICK, backo);
   }
   public function laro(event: MouseEvent) {
  removeChild(startopt);
  addChild(newload);

  newload.x = 350;
  newload.y = 290;

  newload.btnNew.addEventListener(MouseEvent.CLICK, neww);
  newload.btnBack2.addEventListener(MouseEvent.CLICK, backu);
   }
   public function backo(event: MouseEvent) {
  removeChild(learnopt);
  addChild(startopt);
   }
   public function neww(event: MouseEvent) {
  removeChild(learnopt);
  addChild(scrollstorywin);

  scrollstorywin.x = 51.15;
  scrollstorywin.y = 30.05;
   }
   public function backu(event: MouseEvent) {
  removeChild(newload);
  addChild(startopt);
   }
   public function propo(event: MouseEvent) {
  removeChild(learnopt);
  propocon.gotoAndStop(1);
  addChild(propocon);

  propocon.x = 414.80;
  propocon.y = 218.60;

  propocon.btnExit.addEventListener(MouseEvent.CLICK, byeol);
   }
   public function byeol(event: MouseEvent) {
  removeChild(propocon);
  addChild(learnopt);
   }
   /*propocon.btnBtm.addEventListener(MouseEvent.CLICK, byl);
  public function byl(event: MouseEvent) {
  removeChild(propocon);
  addChild(learnopt);
  }*/

   public function sets(event: MouseEvent) {
  removeChild(learnopt);
  addChild(setcon);

  setcon.x = 412.45;
  setcon.y = 225.00;
   }
   public function relations(event: MouseEvent) {
  removeChild(learnopt);
  addChild(relationcon);

  relationcon.x = 400.00;
  relationcon.y = 225.00;
   }
   }
}

I'm finding a solution of it esp Warning: 1082: Migration issue but unfortunately, I found nothing. I read about Warning: 1082: Migration issueand it says that the codes import from AS2 to AS3, but in my case, I NEVER using AS2. And yes, I'm importing code from the another file, but in AS3, too. How can I fix these errors? Any ideas on how to solve it? Any suggestions or help will be appreciated. Thanks!

[kglad · Accepted solution]

remove super()

[cjyoon1227]

Alright! No more errors appear, just super() is the problem. Thanks!

[kglad]

you're welcome.

[h3an1]

can i know how to remove super() because im having the same problem. i dont even know why the warning appear : (