XML loader in ActionScript define failure

Question

I used the XML class in the <mx:Script> tag.
I defined a URLLoader to load an external XML file. But the
system return a undefined object on it.
My script are here:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:Script>
<![CDATA[
import mx.core.EventPriority;
var MyXML:XML = new XML();
var MyRequest:URLRequest = new URLRequest("
http://sweb.cityu.edu.hk/50685791/Adv_trialPosts.xml");
var MyLoader:URLLoader = new URLLoader(MyRequest);
MyLoader.addEventListener(Event.COMPLETE, onComplete );
private function onComplete(event:Event):void {
MyXML = XML(MyLoader.data);
]]>
</mx:Script>
</mx:Application>
The system returns two errors:
1120:Access of undefined property MyLoader.
1120:Access of undefined property onComplete
Moreover, I think the MyXML is also failed to defined.
What can I do???
thx!!!

Answer 1

Your don't have the proper operating system privileges. Be sure that you (=oracle OS user / the OS Linux user that is starting the database) are allowed have read privs on the path and/or file.
for example...
chown -Rf /xxxxxxx/xxxx/etc
ls -l file.xml
file.xml    oracle:oinstall    rw-rw-rw