Unable to Instantiate a class from the web service Client.

Question

here am simply creating a web service client from .wsdl file in c# visual studio,

there am creating a client successfully but am unable to instantiate class from that client.

the .wsdl file am using is stored at my machine.
after successfull client creation am including the namespace of my service reference and just trying to access the class from .wsdl file which am unable to access.
does any body knows?what is a issue?