Animate cc error

[ATGB]

Hi,

I am creating an animation for a touch screen with several sound sliders that control sound volume.

I is all working fine except I am getting this error for all the sliders I created

TypeError: Error #1009: Cannot access a property or method of a null object reference.

  at SinfoniasV13_3_2018530_fla::MainTimeline/onEnterFrame12()[SinfoniasV13_3_2018530_fla.MainTimeline::frame811:116]

[UnloadSWF] SinfoniasV13.3.2018530.swf

this is the code I used to control the volume:

var sliderValue:uint = (mypista1.botao1.x)/100;

var gain:caga = new caga(); 

var trans:SoundTransform;

trans = new SoundTransform(1, 0);

var channel:SoundChannel = gain.play(0, 100, trans);

channel.addEventListener(Event.SOUND_COMPLETE, onPlaybackComplete);

addEventListener(Event.ENTER_FRAME, onEnterFrame);

function onEnterFrame(event:Event):void

{

    trans.volume =mypista1.botao1.x *0.1;

    channel.soundTransform = trans; // or SoundMixer.soundTransform = trans;

}

function onPlaybackComplete(event:Event):void

{

    removeEventListener(Event.ENTER_FRAME, onEnterFrame);

}

This is the bit of code giving the error although  all working fine

{

    trans.volume =mypista1.botao1.x *0.1;

    channel.soundTransform = trans; // or SoundMixer.soundTransform = trans;

}

Thank you all in advance

Best

Ana

[kglad]

line 116, frame 811 is trying to reference an object that doesn't exist.

if that's not enough help, what line is that?

[ATGB]

Hi, thank you for the answer.

I had already identified the line, sorry I didn’t mention that at the beginning.

That line correspond to:

trans.volume=mypista1.botão1.x *0.1

I can’t fint what’s wrong whit it.

mypista1 is the name I gave to the symbol that has the slider and the volume button (botao1).

the error only appears when I publish it.

thanks again

best

Ana

[kglad]

what's:

trace(trans);

trace(mypista1);

trace(mypista1.bataol)

prior to that line of code show?

[ATGB]

Sorry, I don’t understand your question

[ATGB]

Ok, I understood now...

[ATGB]

Prior to that line of code I don t have any code in that frame.

I have a symbol (mypista1) that works as a volume slider, and inside it, two symbols the knob (botao1) and the slider  guide (pista1) with the code for the knob movement.

The trans was originally in the code that I got from a tutorial   ...

[kglad]

add those 3 trace statements prior to the problematic line of code.

what's the output panel show?

[ATGB]

[object SoundTransform]

[object mypista_31]

undefined

this is what the panel shows, like a million times ...

[kglad]

when your code executes, there's a mypista1 object, but not a mypista1.bataol.

[ATGB]

Sorry about the dumb question... but...

How do I solve it??

There is a mypista1 object and inside it there is the botao1 object and the pista1 object...

[kglad]

what main timeline frame contains mypista1?

what mypista1 frame contains botao1?

is botao1 part of a tween and is it ever removed from mypista1's timeline?

[ATGB]

what main timeline frame contains mypista1?

744

what mypista1 frame contains botao1?

1

is botao1 part of a tween and is it ever removed from mypista1's timeline?

No

I can explain you a bit better the project if it helps:

I have several volume slides (mypista1, mypista2, etc) in the same frame in timeline.

The knop (botao1) moves in the balk (pista1) in the frame 1 of mypista with this code:

var knobWidth:Number = botao1.width;

var trackWidth:Number = pista1.width;

var trackX:Number = pista1.x;

var boundWidth = trackWidth - knobWidth;

var boundsRect:Rectangle = new Rectangle(trackX, 0, boundWidth, 0);

//beginpositie sliderKnob

botao1.x =270;

//Enable drag

botao1.addEventListener(MouseEvent.MOUSE_DOWN, startDragging);

function startDragging(event:MouseEvent) {

    botao1.startDrag(false, boundsRect);

}

//Stop drag

botao1.addEventListener(MouseEvent.MOUSE_UP, stopDragging);

//knop.addEventListener(MouseEvent.ROLL_OUT, stopDragging);

function stopDragging(event:MouseEvent) {

botao1.stopDrag();

}

//onRealeaseOutside

stage.addEventListener(MouseEvent.MOUSE_UP,upStage);

function upStage(e:MouseEvent):void {

stopDrag();

}

Each slide (mypista1) controls a different volume whith this code:

var sliderValue:uint = (mypista1.botao1.x)/100;

var gain:caga = new caga(); 

var trans:SoundTransform;

trans = new SoundTransform(1, 0);

var channel:SoundChannel = gain.play(0, 100, trans);

channel.addEventListener(Event.SOUND_COMPLETE, onPlaybackComplete);

addEventListener(Event.ENTER_FRAME, onEnterFrame);

function onEnterFrame(event:Event):void

{

  trans.volume =mypista1.botao1.x *0.1;

    channel.soundTransform = trans; // or SoundMixer.soundTransform = trans;

}

function onPlaybackComplete(event:Event):void

{

    removeEventListener(Event.ENTER_FRAME, onEnterFrame);

}

All works fine in terms of sound. But when I test it the error appear after pressing a go back button (gotoAndStop)

Thank you sooooo much for trying to help me ...

[kglad]

do you see the error every time the frame that contains that code displays?

[ATGB]

No, Just when I press the go back button...

[kglad]

i don't see any way to determine the problem via a forum.  imo someone will need to download and fix your fla.

but maybe someone else can figure it out.

[ATGB]

Thank you very much any way... I'll keep trying to solve the problem, or try to find a different code to play the sounds and changing volumes.

Best regards

AB

[kglad]

you're welcome.