如何在无效列名后修复Db，并且迁移失败

Question

我在ApplicationUser.cs中添加了属性（之前我已经做过），一切都爆炸了。此类扩展了IdentityUser。当我注释掉属性时，一切似乎都能正常工作。我做错了什么？

ApplicationUser.cs

 public class ApplicationUser : IdentityUser
    {
        public string LGID { get; } = "";
        public string CoIDs { get; } = "";

        public string LGIDSuperUserName { get; set; } = "unknown"; //new
        public bool IsSuperUser { get; set; } = false;  //new

        public ApplicationUser() { }

        public ApplicationUser(ClaimsIdentity identity)
        {
            IEnumerable<Claim> claims = identity.Claims;
            foreach (Claim c in claims)
            {
                if (c.Type == "LGID")
                    LGID = c.Value;
                if (c.Type == "CoIDs")
                    CoIDs = c.Value;
                if (c.Type == "LGIDSuperUser")
                    LGIDSuperUserName = c.Value;
                if (c.Type == "IsSuperUser")
                    IsSuperUser = c.Value.ToLower()=="yes";
            }
        }
    }

如果需要，请提供更多信息。不确定这里有什么相关

当我登录我的网站时，我首先收到一条错误消息，表明我需要迁移数据库。在NuGet包管理器中，我跑了：

Add-Migration ApplicationDbContext
Update-Database

现在我尝试登录时出现错误消息：

Invalid column name 'IsSuperUser'.

var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);

这是我在VisualStudio中的Migrations文件夹：