Unable to resolve service for type 'Microsoft.AspNetCore.Identity.UserManager`1[MVCTeamProject.Models.ApplicationUser]' while attempting to activate code example

Example 1: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.UserManager

services.AddIdentity<Automobile.Models.Account, IdentityRole>(options =>
    {
        options.User.RequireUniqueEmail = false;
    })
    .AddEntityFrameworkStores<Providers.Database.EFProvider.DataContext>()
    .AddDefaultTokenProviders();

Example 2: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.RoleManager`1[Microsoft.AspNetCore.Identity.IdentityRole]' while attempting to activate 'PathApp.Controllers.SearchPathController'.

services.AddDefaultIdentity<ApplicationUser().AddRoles<IdentityRole>().AddEntityFrameworkStores<ApplicationDbContext>();