Entity framework EntityType'；用户登录'；没有定义键。定义此EntityType的键

我试图将我的ASP.NET标识类映射到我的数据库表，但我得到一个ModelValidationException，它说

“TestJam.UserLogins:：EntityType'UserLogins'未定义键。请定义此EntityType的键。 UserLogins:EntityType:EntitySet“UserLogins”基于未定义键的类型“UserLogins”。“

这是我的代码：

public class TJUserRoles : IdentityUserRole<long> { }

public class TJRoles : IdentityRole<long, TJUserRoles>, Services.IBaseProperties<long>
{
    public bool Deleted { get; set; }
    public long ModifiedBy { get; set; }
    public DateTime ModifiedOn { get; set; }
}

public class TJUserClaims : IdentityUserClaim<long> { }

public class TJUserLogins : IdentityUserLogin<long> { }

public class TJDbContext : IdentityDbContext<TJUsers, TJRoles, long, TJUserLogins, TJUserRoles, TJUserClaims>
{
    public TJDbContext() : base("name=TestJamMilkyWayIdentity")
    {
        Configuration.LazyLoadingEnabled = false;
        Configuration.ProxyCreationEnabled = false;
    }

    public static TJDbContext Create()
    {
        return new TJDbContext();
    }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        modelBuilder.Entity<TJUserLogins>().Map(c =>
        {
            c.ToTable("UserLogins");
            c.Properties(p => new
            {
                p.UserId,
                p.LoginProvider,
                p.ProviderKey
            });
        }).HasKey(p => new { p.UserId, p.LoginProvider, p.ProviderKey });

知道为什么会这样吗

更新

    public class TJUsers : IdentityUser<long, TJUserLogins, TJUserRoles, TJUserClaims>
{
    public string Name { get; set; }
    public bool IsBlocked { get; set; }

    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(TJUserManager manager)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        // Add custom user claims here
        return userIdentity;
    }
}

公共类tjuser:IdentityUser
{
公共字符串名称{get；set；}
公共bool被阻止{get；set；}
公共异步任务GenerateUserIdentityAsync（TJUserManager）
{
//注意authenticationType必须与CookieAuthenticationOptions.authenticationType中定义的类型匹配
var userIdentity=wait manager.CreateIdentityAsync（这是DefaultAuthenticationTypes.ApplicationOkie）；
//在此处添加自定义用户声明
返回用户身份；
}
}

我设置了一个scratch项目，它作为一个新数据库可以正常工作

---

你能确认你的TJUsers类实现了公共类吗。它是从IdentityUser继承的

CREATE TABLE [dbo].[UserLogins](
    [LoginProvider] [nvarchar](128) NOT NULL,
    [ProviderKey] [nvarchar](128) NOT NULL,
    [UserId] [bigint] NOT NULL,
 CONSTRAINT [PK_UserLogins] PRIMARY KEY CLUSTERED 
(
    [LoginProvider] ASC,
    [ProviderKey] ASC,
    [UserId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

ALTER TABLE [dbo].[UserLogins]  WITH CHECK ADD  CONSTRAINT [FK_dbo.UserLogins_dbo.Users_UserId] FOREIGN KEY([UserId])
REFERENCES [dbo].[Users] ([Id])
ON DELETE CASCADE
GO

    public class TJUsers : IdentityUser<long, TJUserLogins, TJUserRoles, TJUserClaims>
{
    public string Name { get; set; }
    public bool IsBlocked { get; set; }

    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(TJUserManager manager)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        // Add custom user claims here
        return userIdentity;
    }
}