# Error 404

**URL:** <https://forum.kirupa.com/t/error-404/319972>\
**Category:** Uncategorized\
**Created:** [March 10, 2011, 4:12am UTC](https://forum.kirupa.com/t/error-404/319972 "2011-03-10T04:12:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![FlashAj325](https://avatars.discourse-cdn.com/v4/letter/f/5daacb/32.png) [@FlashAj325](https://forum.kirupa.com/u/FlashAj325)\
**Post date:** [March 10, 2011, 4:12am UTC](https://forum.kirupa.com/t/error-404/319972/1 "2011-03-10T04:12:13Z")

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This originally came from Back, Then No Forward, so answer it there.

I found out, that, if I click one of my buttons, this comes up:

TypeError: Error #2007: Parameter child must be non-null.  
at flash.display[::]DisplayObjectContainer/removeChild()  
at HowToTemplate\_fla::MainTimeline/checkForWin()

Then, if you click on it again, another output error comes up:

ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.  
at flash.display[::]DisplayObjectContainer/removeChild()  
at HowToTemplate\_fla::MainTimeline/checkForWin()

Help Thanks! Oh, and, HowToTemplate\_fla is the .fla that I’m working on.

Find out how to help at [this site.](http://www.kirupa.com/forum/showthread.php?t=361639) Thanks!

-FlashAj325