title: WSO2 WS based Greg v 4.5.2 mounting with ESB v 4.5.1
body: <p>Earlier we were using Governance Registy mounted in our  ESB with Web service mounting option and it was working perfectly fine. But after migrating to Greg v4.5.2 and ESB v4.5.1,  this has stopped working and have made us running in to deep problem as all of our services are not getting deployed due to mounting not working properly. </p>
  
  <p>I have followed the instructions given in the link  <a href="http://docs.wso2.org/wiki/display/Governance453/Remote+Instance+and+Mount+Configuration+Details" rel="nofollow">http://docs.wso2.org/wiki/display/Governance453/Remote+Instance+and+Mount+Configuration+Details</a>
  We have opted for third option which is WebService-Based Remote Instance Configuration</p>
  
  <p>But after doing what has been mentioned and starting the ESB server, it is giving enormous errors regarding various transports not starting up correctly and the services which were using wsdls and schemas stored in Greg, are not starting, complaining about resource stream coming as null.</p>
  
  <p>I will really appreciate if someone can suggest the way to proceed forward. </p>