# How work gotoAndStop?

**URL:** <https://forum.kirupa.com/t/how-work-gotoandstop/314257>\
**Category:** Uncategorized\
**Created:** [September 22, 2010, 11:50pm UTC](https://forum.kirupa.com/t/how-work-gotoandstop/314257 "2010-09-22T23:50:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![walerka](https://avatars.discourse-cdn.com/v4/letter/w/ea5d25/32.png) [@walerka](https://forum.kirupa.com/u/walerka)\
**Post date:** [September 22, 2010, 11:50pm UTC](https://forum.kirupa.com/t/how-work-gotoandstop/314257/1 "2010-09-22T23:50:22Z")

</div>

i have problem with gotoAndStop:

```auto
btn2.addEventListener(MouseEvent.CLICK, TransitionFrame)

function TransitionFrame(e:MouseEvent):void {
    mc1.mc2.gotoAndStop("frames2");
    
}

```

but not work, and i see error:

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

How fix?