[flexcoders] "type was not found or was not a compile-time constant" Error

[heygapdol]

Hello, I'm new to the Flex scene and I'm trying out an open source
project called "Merapi" ( http://merapiproject.net/index.php ), which is
essentially a bridge between java and AIR.I've been building a Flex app
to use this package and I keep getting "type was not found or was not a
compile-time constant:BridgeInstance" error.
This code is pretty much taken straight from their hello world video
which can be found here
<http://merapiproject.net/index.php?option=com_content&view=article&id=5\
1&Itemid=84> .

Here's my code:
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009";
                        xmlns:s="library://ns.adobe.com/flex/spark"
                        xmlns:mx="library://ns.adobe.com/flex/mx"
                        xmlns:merapi="merapi.*">

         <merapi:BridgeInstance id="bridge"
result="handleResult(event)"/>

         <mx:Script>
             <![CDATA[
             import merapi.messages.*;
             import mx.rpc.events.ResultEvent;
             private function handleResult( event : ResultEvent ) : void

             {
                 var message : IMessage = event.result as IMessage;
             }
             ]]>
         </mx:Script>

</s:WindowedApplication>

My understanding is that this have something to do importing the swc
file - I tried putting the argument -include-libraries
"merapi/merapi-core.swc" in the flex compiler and
  I've put the merapi-core.swc file in everywhere in desperate attempt:
now it's in src, libs and the main project folder.
Still I get "type was not found or was not a compile-time constant" on
the line      <merapi:BridgeInstance id="bridge" 
result="handleResult(event)"/>.
Any ideas on this?