We have an android application communicating with a WCF Service. We are passing JSON string to the WCF Service . But We are getting the following message .
The message with Action 'JsonAuthenticateUser' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or
a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).