Injecting RoleManager results in error

asp.net-core c# entity-framework-core

Question

First things first, my issue is similar to this SO link, but not the same

I am going through the Identity sample from microsoft. I started it with only user authentication and it worked. I removed the DB because I want to use Database first. Now I am trying to incorporate Roles.

My setup is like this for user (works without role) and role (didn't work):

My DB entities are setup as such:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser, IdentityRole<int>, int>
{
    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
        : base(options)
    {
    }

    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);

        builder.Entity<ApplicationUser>(e =>
        {
            e.ToTable("User").HasKey(x => x.Id);
            e.Property(x => x.Id).HasColumnName("UserId");
        });

        builder.Entity<IdentityRole<int>>(e =>
        {
            e.ToTable("Role").HasKey(x => x.Id);
            e.Property(x => x.Id).HasColumnName("RoleId");
        });

and my context, user setup (I want to keep using the original IdentityRole)

public class ApplicationDbContext : IdentityDbContext<ApplicationUser, IdentityRole<int>, int>
{
}
public class ApplicationUser : IdentityUser<int>
{
}

in ConfigureServices:

services.AddIdentity<ApplicationUser, IdentityRole<int>>()
    .AddEntityFrameworkStores<ApplicationDbContext, int>()
    .AddDefaultTokenProviders();

in AccountController, I tried this:

[Authorize]
public class AccountController : Controller
{
    private readonly UserManager<ApplicationUser> _userManager;
    private readonly RoleManager<IdentityRole> _roleManager;
    private readonly SignInManager<ApplicationUser> _signInManager;
    private readonly IEmailSender _emailSender;
    private readonly ISmsSender _smsSender;
    private readonly ILogger _logger;

    public AccountController(
        UserManager<ApplicationUser> userManager, 
        RoleManager<IdentityRole> roleManager,
        SignInManager<ApplicationUser> signInManager,
        IEmailSender emailSender,
        ISmsSender smsSender,
        ILoggerFactory loggerFactory)
    {
        _userManager = userManager;
        _roleManager = roleManager;
        _signInManager = signInManager;
        _emailSender = emailSender;
        _smsSender = smsSender;
        _logger = loggerFactory.CreateLogger<AccountController>();
    }

The app still load on the browser and it remembers that I've logged in before but when I try to logout for example, I get this error:

InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.RoleManager`1[MyProj.Web.Models.MyViewModels.ApplicationRole]' while attempting to activate 'MyProj.Web.Controllers.AccountController'.

1
1
5/23/2017 12:00:45 PM

Accepted Answer

Replace RoleManager<IdentityRole> by RoleManager<IdentityRole<int>> and it should work.

1
11/2/2016 4:23:52 PM


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