UWP使用单独的项目进行存储库和服务，但无法添加对应用程序的引用

Basically the question above, how would i go about adding a reference to the two projects, Repository and Service, which both are Class libraries that target the DNXcore50. They also have references to .net framework 4.5.1. I got the Libraries to talk to each other, and can call them from a web based api/application, but when I try and add the service layer reference to the UWP application I get an error message saying "The servicelayer cannot be referenced."Basically the question above, how would i go ab