Flash pro cs4 and OSMF 1.5

Question

hi i am trying to build a custom OSMF player using "osmf1.5.swc" and flash cs4 professional but getting this errors.....
1046: Type was not found or was not a compile-time constant: DRMStatusEvent.
1046: Type was not found or was not a compile-time constant: SystemUpdater.
1046: Type was not found or was not a compile-time constant: DRMStatusEvent.
1046: Type was not found or was not a compile-time constant: DRMErrorEvent.
1046: Type was not found or was not a compile-time constant: DRMAuthenticationCompleteEvent.
1046: Type was not found or was not a compile-time constant: DRMAuthenticationErrorEvent.
1046: Type was not found or was not a compile-time constant: SystemUpdater.
and the AS 3.0 code i am using is...
package
          import flash.display.*;
          import org.osmf.containers.MediaContainer;
          import org.osmf.elements.VideoElement;
          import org.osmf.media.MediaPlayer;
          import org.osmf.media.URLResource;
          public class displayarea extends MovieClip
                    public function displayarea()
  //testing console o/p
                              trace("hello");
                              //OSMF code starts here
                              var container = new MediaContainer();
                              addChild(container);
                              var videoelement = new VideoElement(new URLResource("Pixar_Presto.flv"));
                              container.addMediaElement(videoelement);
                              var mediaplayer = new MediaPlayer();
                              mediaplayer.media = videoelement;
any suggestions?

Answer 1

Thank's a lot that worked,but again i got this  (in output tab not in compiler error tab) by pressing ctrl+enter
VerifyError: Error #1053: Illegal override of play2 in org.osmf.net.httpstreaming.HTTPNetStream.
ReferenceError: Error #1065: Variable MainTimeline is not defined.
however it is working fine when i opened the swf in a webbrowser.