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Flex——Flash Player Not Found

Are you running your Flex Application and continually getting the error below?
"Flex Builder cannot locate the required version of the Flash Player. You might need to install Flash Player 9 or reinstall Flex Builder. Do you want to try to run your application with the current version?"
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FlexÀý×Ó Í¨¹ý¼Ì³ÐÔö¼ÓÐµĹ¦ÄÜ

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<!-- Simple example to demonstrate the ColumnChart and BarChart controls. -->
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creationComplete="initApp()"
backgroundColor="#FFFFFF" width="350" height="125"
layout="absolute">
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3 ¹Ù·½AS3ѧϰ×ÊÁÏÍøÕ¾  http://www.adobe.com/devnet/actionscript/
4 Õâ¶ùÍÆ¼öÒ»¸öÍøÖ·£¬²»½ö¿ÉÒÔ¶ÔÆäËüµÄÊý¾ÝÀàÐͽøÐÐѧϰ£¬»¹Óлù´¡µÄÓï·¨£¬·Ç³£²»´í£º
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