http://livedocs.adobe.com/ Macromedia LiveDocs - online documentation with user feedback. Copyright 2009, Macromedia, Inc. 2009-11-25T16:54:44 en-us http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/fl/controls/ProgressBar.html#85199 I resolved my "Parameter child must be non-null" problem by simply adding the ProgressBar to my .fla's Library (dragged from Components). ggerade 0 0 2008-06-24T17:51:03 http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/fl/controls/ProgressBar.html#77080 I am not able to get these examples to work.<br /><br />After added many paths to my classpath to get flash to find its own classes, I was able to compile the last example on the ProgressBar.<br /><br />When I run it I get the text "Increament Progress" in the flash viewer with no other content. No button. No progress bar. When I click on the Increament Progress" text it is calling the event method, but nothing is affected.<br /><br />I also get the following error:<br /><br />TypeError: Error #2007: Parameter child must be non-null.<br /> at flash.display::DisplayObjectContainer/addChildAt()<br /> at fl.controls::ProgressBar/fl.controls:ProgressBar::drawTrack()<br /> at fl.controls::ProgressBar/fl.controls:ProgressBar::draw()<br /> at fl.core::UIComponent/::callLaterDispatcher()<br />TypeError: Error #2007: Parameter child must be non-null.<br /> at flash.display::DisplayObjectContainer/addChildAt()<br /> at fl.controls::BaseButton/fl.controls:BaseButton::drawBackground()<br /> at fl.controls::LabelButton/fl.controls:LabelButton::draw()<br /> at fl.controls::Button/fl.controls:Button::draw()<br /> at fl.core::UIComponent/::callLaterDispatcher()<br /><br />Looks like it is in the flash classes, not sure what to do. 0 0 2007-11-20T19:45:17