Type error #1010 PLEASE HELP!!!!

Question

Hi I'm trying to create a website  in flashcs5 for a class project. Inside the project i have a movie clip  which contains my menu buttons and I've placed that movie clip on the  main timeline in scene1. I've used action script to link the buttons  from the mc to the main timeline. All the buttons are working except the  button "recommended". I keep getting this error:
TypeError:  Error #1010: A term is undefined and has no properties.
    at  dreamcatcher_fla::MainTimeline/frame1()
Here is the code  in the actionscript:
Object(root).menu_mc.dreamcatchers_btn.addEventListener(MouseEvent.CLI  CK, fl_dreamcatchers);
function  fl_dreamcatchers(event:MouseEvent):void
     gotoAndPlay("dreamcatchers");
Object(root).menu_mc.legend_btn.addEventListener(MouseEvent.CLICK,  fl_legend);
function fl_legend(event:MouseEvent):void
     gotoAndPlay("legend");
Object(root).menu_mc.objiwe_btn.addEventListener(MouseEvent.CLICK,  fl_objiwe);
function fl_objiwe(event:MouseEvent):void
     gotoAndPlay("objiwe");
Object(root).menu_mc.lakota_btn.addEventListener(MouseEvent.CLICK,  fl_lakota);
function fl_lakota(event:MouseEvent):void
     gotoAndPlay("lakota");
Object(root).menu_mc.recommended_btn.addEventListener(MouseEvent.CLICK  , fl_recommended);
function  fl_recommended(event:MouseEvent):void
     gotoAndPlay("recommended");
Object(root).menu_mc.basic_btn.addEventListener(MouseEvent.CLICK,  fl_basic);
function fl_basic(event:MouseEvent):void
     gotoAndPlay("basic");
Object(root).menu_mc.advanced_btn.addEventListener(MouseEvent.CLICK,  fl_advanced);
function fl_advanced(event:MouseEvent):void
     gotoAndPlay("advanced")
I've double and  triple checked all the instance names and there are no problems. The  code for recommended is exactly the same as for all the other buttons so  I don't understand what's going on. I need to get this project done so  if anyone can help me I'd really appreciate it!!!

Answer 1

Hi Aqua0315,
programming on timeline is tricky:) especially with such "monsters" like this:
Object(root).menu_mc.basic_btn.addEventListener(MouseEvent.CLICK,  fl_basic);
are you sure that by the time above code executes menu_mc exists with basic_btn? To help you debug do:
wrap each of the "addeventlistener" line you have with try catch block as in following example:
try
Object(root).menu_mc.basic_btn.addEventListener(MouseEvent.CLICK,  fl_basic);
catch(err:*)
     trace("ERROR#1");//
change "#1" to whatever you like but unique for each block then in output you will have better indication to where the problem occures,
best regards