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WCF error : ContractDescription '...' has zero operations; a contract must have at least one opera

Posted By:      Posted Date: October 21, 2010    Points: 0   Category :WCF
Hi everybody,
I'm developing an application with WCF on Windows desktop, I've defined an interface for service contract with [ServiceContract] for itself & [OperationContract] attributes for methods, but when I run the application when it want to open the service throws an exception with this message :

ContractDescription 'WCF_Book.Products.Contracts.IProductService' has zero operations; a contract must have at least one operation.

Please tell me how can I resolve this problem.


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