Load Runner 12..02

#warning:  Code Generation Error
			// Found an undefined object of type System.ServiceModel.InstanceContext. Assigning it the name callbackInstance_1.
			// Suggested solution: adding both this type, in assembly System.ServiceModel, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089, to the filter 
			// and/or any other types that return instances of this one.
			// Note:  This script will not compile as is.
			lr.log("Event 245: ((MarshalByRefObject)(DuplexChannelFactory<IArmsMessage>.CreateChannel"  
			  "(callbackInstance_1, NetTcpBinding_5, EndpointAddress_5)));");
			MarshalByRefObject_5 = ((MarshalByRefObject)(DuplexChannelFactory<IArmsMessage>.CreateChannel(callbackInstance_1, NetTcpBinding_5, EndpointAddress_5)));
i alresdy included "System.ServiceModel.InstanceContext" at the filter, though it showing an error