Question

This is my code:

play_mc.onRelease= function ()
{
    GotoAndPlay ("Scene 3",1)
}

I get the following error:

Error 1180 Call to a possibly undefined method gotoAndPlay

Why is this?

Answer 1

You are trying to call a method on a MovieClip object. Which is ‘play_mc’ in this case. The first letter is lower case and the type signature for the method is the following:

gotoAndPlay(frame:Object, scene:String = null):void

So you should actually have gotoAndPlay(1, “Scene 3”);
Finally, If you are using AS2 you should use the this keyword to call the method if you want gotoAndPlay to run on ‘play_mc’. Otherwise, if you leave it out the method will run on the main timeline. So I would keep that in mind.

Also, if you are on AS3 you should use addEventHanlder. Either solution makes it more clear on the scope of the method being called and makes the code more flexible.

Here is the MovieClip AsDoc

Here is the Reference to AS3 Event Handling