A LiteDB provider for ASP.NET Core Identity framework.
https://www.nuget.org/packages/AspNetCore.Identity.LiteDB
You have to add the following lines to your Startup.cs in the ASP.NET Core Project.
--> See Demo Project
Also make sure you use the right using Statements in Startup.cs, AccountController, ManageController and Values Controller.
using AspNetCore.Identity.LiteDB;
using AspNetCore.Identity.LiteDB.Models;