ERROR meteorologia Flex

[Sergestux]

Por aca hay un buen ejemplo:

Código xml:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    layout="vertical"
    backgroundAlpha="0" backgroundColor="#FFFFFF">
 
    <mx:HTTPService
        id="weatherService"
        url="http://weather.yahooapis.com/forecastrss"
        resultFormat="e4x"
        result="resultHandler(event);"/>
 
    <mx:Script>
        <![CDATA[
            import mx.rpc.events.ResultEvent;
 
            private namespace yweather = "http://xml.weather.yahoo.com/ns/rss/1.0";
            use namespace yweather;
 
            [Bindable]
            private var myResult:XML;
 
            public function requestWeather():void {
                weatherService.cancel();
                var params:Object = new Object();
                params.p = zip.text;
                weatherService.send(params);
            }
 
            public function resultHandler(event:ResultEvent):void {
                myResult = XML( event.result );
            }
        ]]>
    </mx:Script>
 
    <mx:Form width="400">
        <mx:FormItem label="Zip Code">
            <mx:TextInput id="zip" />
            <mx:Button label="Get Weather" click="requestWeather();"/>
        </mx:FormItem>
        <mx:FormItem label="City">
            <mx:Text text="{myResult.channel.yweather::location.@city}"/>
        </mx:FormItem>
        <mx:FormItem label="Temperature">
            <mx:Text text="{myResult.channel.item.yweather::condition.@temp}"/>
        </mx:FormItem>
        <mx:FormItem label="Condition">
            <mx:Text text="{myResult.channel.item.yweather::condition.@text}" width="100%"/>
        </mx:FormItem>
    </mx:Form>
    <mx:TextArea id="resultFld" text="{myResult}" width="400" height="152"/>
</mx:Application>