Add service reference fails with compilation error in WF 4.5/4.5.1 projects

Statement ====================== WF application consumes WCF service. WCF service is supposed to return List<CustomClass> in response for one of its methods. The client application adds service reference with advanced option as “System.Collections.Generic.List”. In reference.cs, List< CustomClass> member is generated.   However, there is a build error: Compiler error(s) encountered processing expression “”. Reference required to…