Unable to load SWF in as3 - actionscript-3

Question

I am working in flash and as3. I am new to as3. I was trying to load and unload the SWF file.
My project contains 2 files, one is index file and the other is animal file. In the index page I have button for animal. When I click on this button the animal SWF starts executing. But the problem is when I click on index button of animal SWF, it is not showing index page again, instead it is showing message as
Unable to load SWF
My index page code is:
var urlReq:URLRequest = new URLRequest("animal/animal.swf");
swfLoader.load(urlReq);
swfLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, swfLoadComplete);
swfLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
swfLoadError);
function swfLoadComplete(evt:Event):void
{
var loader:Loader = Loader(evt.target.loader);
addChild(loader.content);
swfLoader.removeEventListener(Event.COMPLETE, swfLoadComplete);
}
function swfLoadError(evt:IOErrorEvent):void
{
trace("Unable to load swf ");
swfLoader.removeEventListener(IOErrorEvent.IO_ERROR, swfLoadError);
}
So what to do to load the index SWF from animal SWF?

Answer 1

You probably forgot to add to the displaylist. Use addChild.
var urlReq:URLRequest = new URLRequest("animal/animal.swf");
swfLoader.load(urlReq);
this.addChild(swfLoader);
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/display/DisplayObjectContainer.html
Update: I see its not loaded. You have an IOErrorEvent.IO_ERROR. Mostly this means the file is not located at that url. Check the location or use a http debugger to find out which location you are trying to open.