I'm trying to create a windows phone 8.1 apllication which has access to a local Database. I want to handle the DB acess in a portable class library. For introduction I looked as this webpage: https://msdn.microsoft.com/de-de/library/windows/apps/hh202876(v=vs.105).aspx
But I can't even reference the required namespaces:
using System.Data.Linq;
using System.Data.Linq.Mapping;
using System.ComponentModel;
using System.Collections.ObjectModel;
And also I can't add none of them as reference. Can someone tell me whats wrong
System.Data.Linq
assembly? – Jon Skeet