小编MUY*_*EEM的帖子

我会将数据播种到 AspNet 身份表中。该表已成功创建，但在尝试播种数据时出现错误。

System.InvalidOperationException：尝试激活“Microsoft.AspNetCore.Identity.UserManager”时，“无法解析类型为“Microsoft.Extensions.Logging.ILogger1[Microsoft.AspNetCore.Identity.UserManager1[Microsoft.AspNetCore.Identity.IdentityUser]]”的服务`1[Microsoft.AspNetCore.Identity.IdentityUser]

 public static void EnsureSeedData(string connectionString)
            {
                var services = new ServiceCollection();
                services.AddDbContext<IdentityDbContext>(options =>
                   options.UseSqlServer(connectionString));

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

                using (var serviceProvider = services.BuildServiceProvider())
                {
                    using (var scope = serviceProvider.GetRequiredService<IServiceScopeFactory>().CreateScope())
                    {
                        var context = scope.ServiceProvider.GetService<IdentityDbContext>();
                        context.Database.Migrate();

                        var userMgr = scope.ServiceProvider.GetRequiredService<UserManager<ApplicationUser>>();
                        var alice = userMgr.FindByNameAsync("alice").Result;
                        if (alice == null)
                        {
                            alice = new ApplicationUser
                            {
                                UserName = "alice",
                                Email = "AliceSmith@email.com",
                                EmailConfirmed = true
                            };
                            var result = userMgr.CreateAsync(alice, "My long 123$ password").Result;
                            if (!result.Succeeded)
                            {
                                throw new …