System.ServiceModel References
问题 I'm trying to use System.ServiceModel using System.ServiceModel; using System.ServiceModel.Channels; using System.ServiceModel.PeerResolvers; in C# winform desktop application, but I can't find it in Visual Studio 2015 to add it to the project References, which must be System.SeviceModel in Framework I guess, not sure Any advice would be useful 回答1: Update your project target framework to .NET 4.5 by Right clicking your project, going to properties, then application, then target framework.