# removeChild() problem

**URL:** https://forum.kirupa.com/t/removechild-problem/327926
**Category:** Uncategorized
**Created:** [April 6, 2012, 3:07am UTC](https://forum.kirupa.com/t/removechild-problem/327926 "2012-04-06T03:07:17Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![G\_siX](https://avatars.discourse-cdn.com/v4/letter/g/fbc32d/32.png) [@G\_siX](https://forum.kirupa.com/u/G_siX)
#### Post date: [April 6, 2012, 3:07am UTC](https://forum.kirupa.com/t/removechild-problem/327926/1 "2012-04-06T03:07:17Z")

</div>

My day 3 of AS3 and i found no go beyond this problem:  
[COLOR=#0000cd]  
[/COLOR]when i press MyMenu1 it loaded the sub menu correctly, when i press it twice i got this error

TypeError: Error #2007: Parameter child must be non-null.  
at flash.display::DisplayObjectContainer/removeChild()  
at MunibaseCalculator\_fla::MainTimeline/MyMenu1\_Clicked()

what i m trying to do is, load the MC when MainMenu is pressed and unload it when i pressed it again.

Any help verry much appreciated.  
[COLOR=#0000cd]

var[/COLOR] MyMenu1:MainMenu\_btn1 = [COLOR=#0000cd]new[/COLOR] MainMenu\_btn1();  
MyMenu1[COLOR=#ff0000].x[/COLOR] = 80;  
MyMenu1[COLOR=#ff0000].y[/COLOR] = 85;  
[COLOR=#ff0000]addChild/COLOR;

[COLOR=#0000cd]var[/COLOR] MyMenu1\_Logic[COLOR=#ff0000]:Boolean[/COLOR] = [COLOR=#ff0000]false[/COLOR];  
MyMenu1.[COLOR=#ff0000]addEventListener[/COLOR]([COLOR=#ff0000]MouseEvent.CLICK[/COLOR], MyMenu1\_Clicked);  
[COLOR=#0000cd]function[/COLOR] MyMenu1\_Clicked([COLOR=#ff0000]event:MouseEvent[/COLOR])  
{  
trace([COLOR=#00ff00]“Main Menu Pressed”[/COLOR]);  
[COLOR=#0000cd]if[/COLOR] (MyMenu1\_Logic ==[COLOR=#ff0000] false[/COLOR])  
{  
[COLOR=#0000cd]var[/COLOR] MyMainMenu:MainMenu = [COLOR=#0000cd]new[/COLOR] MainMenu();  
MyMainMenu[COLOR=#ff0000].x[/COLOR] = 0;  
MyMainMenu[COLOR=#ff0000].y[/COLOR] = 105;  
[COLOR=#ff0000]addChild/COLOR;  
MyMenu1\_Logic = [COLOR=#ff0000]true[/COLOR];  
[COLOR=#ff0000]trace[/COLOR]([COLOR=#00ff00]“Sub Menu Loaded”[/COLOR]);  
}  
[COLOR=#0000cd]else if[/COLOR] (MyMenu1\_Logic == [COLOR=#ff0000]true[/COLOR])  
{  
[COLOR=#ff0000]removeChild/COLOR;  
MyMenu1\_Logic = [COLOR=#ff0000]false[/COLOR];  
[COLOR=#ff0000]trace[/COLOR]([COLOR=#00ff00]“Sub Menu Unloaded”[/COLOR]);  
}  
}