报出如下错误,已经通过Reflector工具确认出set_ExtendedProtectionPolicy存在于System.ServiceModel.Channels.HttpTransportBindingElement,但是还是报这个错,不知道有什么好办法能够找出根本原因
Exception:
System.MissingMethodException: Method not found: 'Void System.ServiceModel.Channels.HttpTransportBindingElement.set_ExtendedProtectionPolicy(System.Security.Authentication.ExtendedProtection.ExtendedProtectionPolicy)'.
孙伟安静