Can not see wsdl

[Syam Prasad]

Hi,   I am using message style service. When I try to see the wsdl for my service using URL localhost:8080/services/MyService?wsdl, the response I get is the following.         <- <error>                 <description>Unable to generate WSDL for this service</description>         <reason>Either user has not dropped the wsdl into META-INF or operations use message receivers other than RPC.</reason>   </error>       Can anybody explain me how to see the wsdl?     Thanks,   Syam