getting error while creating Web services with Ruby on Rails

Getting error while creating webservices on ruby on rails.

i have followed what ever the steps mentioned in this url. http://ift.tt/2vKwkvo

After starting the Server with rails s command, when i am hitting http://localhost:3000/hello_message/wsdl this url, its giving me the error as "ActionController::RoutingError (No route matches [GET] /hello message/wsdl):"

Please help me to resolve the issue.

Thanks, Jitender