Simple flex example

Question

I searh a basic flex example like the lesson 1 of this article http://www.adobe.com/devnet/flash/articles/video_osmf.html
this code in a creationComplete handler of my application:
player = new MediaPlayer();
player.source = new VideoElement( new NetLoader(), new URLResource( new URL ( "jkennedy.flv" ) ) );
addChild(player.view);
generate an error:
Error: MediaPlayer - attempt to use a trait not on the media
Thank you

Answer 1

I have now tested this code
Nothing appears, no error, and handler are not triggerred... I do not really understand
Thank you
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="_init();">
    <mx:Script>
        <![CDATA[
            import org.openvideoplayer.media.MediaPlayer;
            import org.openvideoplayer.media.URLResource;
            import org.openvideoplayer.net.NetLoader;
            import org.openvideoplayer.net.NetStreamCodes;
            import org.openvideoplayer.video.VideoElement;
            import org.openvideoplayer.utils.URL;
            import org.openvideoplayer.events.MediaPlayerCapabilityChangeEvent;
            private var player:MediaPlayer;
            private function _init():void
                player = new MediaPlayer();
                player.addEventListener( MediaPlayerCapabilityChangeEvent.VIEWABLE_CHANGE, _onViewable );
                player.autoRewind = false;
                player.autoPlay = true;
                player.source = new VideoElement( new NetLoader(), new URLResource( new URL ( "kennedy.flv" ) ) );
            private function _onViewable(pEvent:MediaPlayerCapabilityChangeEvent):void
                if(pEvent.enabled)
                    addChild(player.view);
        ]]>
    </mx:Script>
</mx:Application>