Flexible Rails problem

Rails
1

Hello everybody, i’m reading the book Flexible Rails, i’m in page 122
of the pdf, but the login page is not working, the error it gives when
i try to login:

[RPC Fault faultString=“HTTP request error”
faultCode=“Server.Error.Request” faultDetail=“Error: [IOErrorEvent
type=“ioError” bubbles=false cancelable=false eventPhase=2 text=“Error
#2032: Stream Error. URL: http://localhost:3000/sessions/create_xml”].
URL: /sessions/create_xml”]
at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/
internal::faultHandler()[E:\dev\3.0.x\frameworks\projects\rpc\src\mx
\rpc\AbstractInvoker.as:216]
at mx.rpc::Responder/fault()[E:\dev\3.0.x\frameworks\projects\rpc\src
\mx\rpc\Responder.as:49]
at mx.rpc::AsyncRequest/fault()[E:\dev\3.0.x\frameworks\projects\rpc
\src\mx\rpc\AsyncRequest.as:103]
at DirectHTTPMessageResponder/errorHandler()[E:\dev\3.0.x\frameworks
\projects\rpc\src\mx\messaging\channels\DirectHTTPChannel.as:343]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/redirectEvent()

The methods used are:

From RoR:

sessions_controler.rb

def create_xml
self.current_user = User.authenticate(params[:login],
params[:password])
if logged_in?
if params[:remember_me] == “1”
self.current_user.remember_me
cookies[:auth_token] = {
:value => self.current_user.remember_token,
:expires => self.current_user.remember_token_expires_at
}
end
render :xml => self.current_user.to_xml
else
render :text => “badlogin”
end
end

From Flex:

LoginBox.mxml

private function handleAccountLoginResult(event:ResultEvent):void {
var result:Object = event.result;
if (result == “badlogin”) {
Alert.show(“The username or password is wrong.”,“Login
Error”);
}
else {
dispatchEvent(new LoginEvent(XML(result)));

    }
  }

<mx:HTTPService
id=“svcAccountLogin”
url=“/sessions/create_xml”
resultFormat=“e4x”
method=“POST”
result=“handleAccountLoginResult(event)”/>

LoginEvent.as

package com.pomodo.events
{
import flash.events.Event;

public dynamic class LoginEvent extends Event
{
public static const LOGIN:String = “login”;
public var user:XML;

public function LoginEvent(user:XML) {
  super(LOGIN);
  this.user = user;
}

}
}

Can anybody please help me?