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Pleae help me out to get rid of this problem. TypeError: Error #2007: Parameter child must be non-null.Īt flash.display::DisplayObjectContainer/addChildAt()Īt fl.controls::BaseButton/drawBackground()Īt fl.core::UIComponent/callLaterDispatcher() When I run the project, it always gives me the following error for the bold red line. I am creating a fl.controls.Button instance in Test class and trying to add it on stage. Buttons, RadioButtons, Checkboxes) and now I am writing the following code. I have added this package to my project as source path or swc file so that I can use the default components (e.g. For additional and updated resources, sign in to the Pearson Instructor Resource Center, find your textbook or product, and download presentations, instructors manuals, and more. As you know flash builder does not include fl.controls package by default. ![]() ![]() I am new to actionscript 3.0, I have Adobe Flash Builder 4.7 installed and I am creating a ActionScript project (File -> New -> ActionScript Project) named as Test.
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