title: ZF2 PHP Warning: SoapServer::SoapServer(): I/O warning : failed to load external entity
body: <p>I am curently using ZF2-RC2 and trying to do a webservice in soap
  I succeed to have my wsdl working by forcing the header, but for the server part, it is not working at all, and i get an error 500 telling me </p>
  
  <blockquote>
    <p>PHP Warning:  SoapServer::SoapServer(): I/O warning : failed to load external entity</p>
  </blockquote>
  
  <p>The error is when i am doing the ->handle() part.</p>
  
  <pre><code>if(isset($_GET['wsdl'])) {
      header ("Content-Type:text/xml"); 
      $autodiscover = new AutoDiscover();
      $autodiscover-&gt;setClass('WsClass')
                   -&gt;setUri('http://adresse/ws/?wsdl');
      echo $autodiscover-&gt;toXml();
  } else {
  
      // pointing to the current file here        
      $soap = new Server('http://adresse/ws/?wsdl');
      $soap-&gt;setClass('WsClass');
      $soap-&gt;handle();
  }
  exit;
  </code></pre>
  
  <p>Could someone help me on this?</p>