# Parameter child must be non-null / Help

**URL:** <https://forum.kirupa.com/t/parameter-child-must-be-non-null-help/323892>\
**Category:** flash\
**Created:** [July 22, 2011, 5:59pm UTC](https://forum.kirupa.com/t/parameter-child-must-be-non-null-help/323892 "2011-07-22T17:59:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Freestyle1st99](https://avatars.discourse-cdn.com/v4/letter/f/6bbea6/32.png) [@Freestyle1st99](https://forum.kirupa.com/u/Freestyle1st99)\
**Post date:** [July 22, 2011, 5:59pm UTC](https://forum.kirupa.com/t/parameter-child-must-be-non-null-help/323892/1 "2011-07-22T17:59:46Z")

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Hope this will not be difficult to answer. Using CS5, AS3, and a bit of an AS noob. I’m getting this error (below) and I am unsure what it means and how to fix, specifically (Parameter child must be non-null). Any help will be appreciated.  
Thanks so much.

TypeError: Error #2007: Parameter child must be non-null.  
at flash.display::DisplayObjectContainer/removeChild()  
at dvdheaderV01\_TESTaCLEAN\_fla::OilDrip\_17/frame1()  
at flash.display::MovieClip/gotoAndStop()  
at dvdheaderV01\_TESTaCLEAN\_fla::MainTimeline/PL\_LOADING()