1046: Type was not found or was not a compile-time constant: VideoEvent.

I'm getting this error, and have imported the class, so I've no idea why.

Here's a code snippet:

import fl.video.*;

var myVideo:NetConnection = new NetConnection;
myVideo.connect(null);
var newStream:NetStream = new NetStream(myVideo);

videoHolder.attachNetStream(newStream);
newStream.play("myvideo.flv");

videoHolder.addEventListener(VideoEvent.BUFFERING_STATE_ENTERED, onPlayerNotBuffered);
videoHolder.addEventListener(VideoEvent.PLAYING_STATE_ENTERED, onPlayerBuffered);

function onPlayerBuffered(e:VideoEvent) {
    newStream.resume();
    loader_txt.text = "";
}

function onPlayerNotBuffered(e:VideoEvent) {
    newStream.pause();
    loader_txt.text = "Buffering...";
}

Any help would be appreciated!