I was having this issue as well. Using the Nuget Package Manager, then found “Microsoft ASP.NET Universal Providers for Core Libraries” (you can see in the right pane that the dll for this is Microsoft.AspNet.Providers.Core 1.2).
That one gave me a similar message for “Micorsoft.AspNet.Providers.LocalDB 1.1”, which I found under “Microsoft ASP.NET Universal Providers for LocalDB”.
Uninstalling that one automatically uninstalled the first two.
That one gave me a similar message for “Micorsoft.AspNet.Providers.LocalDB 1.1”, which I found under “Microsoft ASP.NET Universal Providers for LocalDB”.
Uninstalling that one automatically uninstalled the first two.