Use "NetStream" in Flex 2

Question

I use NetStream as:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
creationComplete="conn()" layout="absolute" frameRate="31"
cornerRadius="0">
<mx:Script>
<![CDATA[
import flash.net.*
import mx.controls.Alert;
public var nc:NetConnection
public var ns:NetStream;
private function conn():void{
nc=new NetConnection();
nc.addEventListener(NetStatusEvent.NET_STATUS,statusHa);
nc.connect("rtmp://192.168.0.119/Audio");
private function statusHa(err:NetStatusEvent):void{
Alert.show(err.info.code);
]]>
</mx:Script>
</mx:Application>
it always alert the message: NetConnection.Connect.Failed
the address rtmp://192.168.0.119/Audio can be connected by
flash use actionscript 2 .
@_@ why

Answer 1

Is there any one know why @_@