The entity type 'AllVM' requires a primary key to be defined for VM with EF Core

Hi

I'm trying to return multiple different non related models in one view as aggregate interface page (each one in html tab) with Entity Framework Core (Core 2.1).

Holidays model:

    public class Holidays
    {
        public int Id { get; set; }

        public string Name{ get; set; }
    }

Actions model:

    public class Actions
    {
        public int Id { get; set; }

        public string Name{ get; set; }
    }

AllVM model:

    public class AllVM
    {
        public IList<Holidays> Holidays { get; set; }
        public IList<Actions> Actions{ get; set; }
    }

ApplicationDBContext:

public virtual DbSet<Actions> Actions { get; set; }
public virtual DbSet<Holidays> Holidays { get; set; }
public virtual DbSet<AllVM> AllVM { get; set; }

Controller:

    public class MyController : Controller
    {
        private readonly ApplicationDbContext _context;

        public MyController(ApplicationDbContext context)
        {
            _context = context;
        }

        public async Task<IActionResult> AllIndex()
        {
            var all = _context.AllVM.Include(s => s.Holidays).Include(s => s.Actions).AsQueryable();

            return View(await all.ToListAsync());
        }

But this scenario gives me the error:

InvalidOperationException: The entity type 'AllVM' requires a primary key to be defined.

I don't want to define a primary key for the ViewModel, I want only to return 2 or more non-related models in AllIndex view each one of them in a tab.

How please?