Hi, Error #1009

[umr]

Hi, I have an animation with 4 buttons leading to 4 different frames  labelled a,b,c and d.

My buttons are named a_btn, b_btn,  c_btn,  d_btn

Of recent the first button is always giving me a a Error #1009 though it has been working for the last last year in the same animation.

the rest of the buttons work with no problem even though the code is same- help

Usha

Error message:

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

                at hdbcThrombophilia_fla::_5_extrinsicpathway_birdseye_16/frame1()

                at flash.display::MovieClip/gotoAndStop()

                at hdbcThrombophilia_fla::_5_extrinsicpathway_birdseye_16/fl_ClickToGoToAndStopAtFrame_a()

my code is

a_btn.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_a);

function fl_ClickToGoToAndStopAtFrame_a(event:MouseEvent):void
{
gotoAndStop("a");
}

b_btn.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_b);

function fl_ClickToGoToAndStopAtFrame_b(event:MouseEvent):void
{
gotoAndStop("b");
}

c_btn.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_c);

function fl_ClickToGoToAndStopAtFrame_c(event:MouseEvent):void
{
gotoAndStop("c");
}

d_btn.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_d);

function fl_ClickToGoToAndStopAtFrame_d(event:MouseEvent):void
{
gotoAndStop("d");
}

[kglad · Accepted solution]

a_btn is null.  ie, it's been defined but is not an object when that error apears.

to remedy, remove what you think is a_btn from all keyframes in its layer.  create a new layer, add a_btn to the first keyframe where you want it to appear and assign its instance name.  add other keyframes as needed.  do not remove&replace a_btn from the stage. that's one way to trigger an error.

p.s. if you click file>publish settings and tick 'permit debugging' the line number triggering the error will be in your error message.

[umr]

I am still having the same problem, however it seems like the button

works well when you I  test in in browser or as a projector.

It does not work when I test it in animate  - which is what I normally do