1108 Error

I am using this code exactly from a tutorial, only with my criteria...why am I getting this error?

var video:Video = new Video(935,525.9);
addchild(video);

var nc:NetConnection = new NetConnection();
nc.connect(null);

var ns:NetStream = new NetStream (nc);

ns.addEventListener(NetStatusEvent.NET_STATUS, onStatusEvent);
function onStatusEvent(stat:Object):void
{
trace(stat.info.code);
}

var meta:Object = new Object();
meta.onMetaData = function (meta:Object)
{ trace(meta.duration);
}

ns.client = meta;
video.attachNetStream(ns);
ns.play("allergy.flv");