InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.UserManager`1[Microsoft.AspNetCore.Identity.IdentityRole]' while attempting to activate 'Assignment_1.Controllers.GFAdministrationController'. code example
Example: 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();