添加服务引用后的分析器错误

Question

我在构建和运行后添加了服务引用我得到了一个带有详细信息的解析器错误

 Reference.svcmap: Method 'get_LocalPath' in type 'Microsoft.AspNet.SignalR.Owin.ServerRequest' from assembly 'Microsoft.AspNet.SignalR.Owin, Version=1.2.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' does not have an implementation.

当我将ASP.NET Web应用程序目标框架从4.0更改为4.7.1但我的WCF服务是.NET Framework 4.0

时，就发生了这种情况

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3056.0