EF核心标识外键抛出每个表中的列名必须唯一

this SO question 这和我的相似,但我无法根据建议的答案来解决。

public class Execution
{
    [DatabaseGenerated(DatabaseGeneratedOption.Identity), Key]
    public int ExecutionId { get; set; }
    [ForeignKey("TierForeignKey")]
    public int TierID { get; set; }
    [ForeignKey("UserForeignKey")]
    public string UserId { get; set; }
    public Tier Tier { get; set; }
    public ApplicationUser User { get; set; }
}

我的用户类扩展IdentityUser如下:

 public class ApplicationUser : IdentityUser
{
    [PersonalData]
    public string Nickname { get; set; }
    [PersonalData]
    public Boolean AcceptedEula { get; set; }
    [PersonalData]
    public string TemplateSelected { get; set; }
    [PersonalData]
    public DateTime DateTimeCreated { get; set; }
    [PersonalData]
    public DateTime DateTimeLastUpdated { get; set; }
    [PersonalData]
    public string GuacamoleUrl { get; set; }
    [PersonalData]
    public string GuacamoleUserName { get; set; }
    [PersonalData]
    public string GuacamolePassword { get; set; }
    public virtual ICollection<ApplicationUserClaim> Claims { get; set; }
    public virtual ICollection<ApplicationUserLogin> Logins { get; set; }
    public virtual ICollection<ApplicationUserToken> Tokens { get; set; }
    public virtual ICollection<ApplicationUserRole> UserRoles { get; set; }
}

public class ApplicationUserRole : IdentityUserRole<string>
{
    public virtual ApplicationUser User { get; set; }
    public virtual ApplicationRole Role { get; set; }
}

public class ApplicationRole : IdentityRole
{
    public virtual ICollection<ApplicationUserRole> UserRoles { get; set; }
    public virtual ICollection<ApplicationRoleClaim> RoleClaims { get; set; }
}

public class ApplicationUserClaim : IdentityUserClaim<string>
{
    public virtual ApplicationUser User { get; set; }
}

public class ApplicationUserLogin : IdentityUserLogin<string>
{
    public virtual ApplicationUser User { get; set; }
}

public class ApplicationRoleClaim : IdentityRoleClaim<string>
{
    public virtual ApplicationRole Role { get; set; }
}

public class ApplicationUserToken : IdentityUserToken<string>
{
    public virtual ApplicationUser User { get; set; }
}

protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        modelBuilder.Entity<ApplicationUser>(b =>
        {
            b.HasMany(e => e.Claims)
                .WithOne()
                .HasForeignKey(uc => uc.UserId)
                .IsRequired();
            b.HasMany(e => e.Logins)
                .WithOne()
                .HasForeignKey(ul => ul.UserId)
                .IsRequired();
            b.HasMany(e => e.Tokens)
                .WithOne()
                .HasForeignKey(ut => ut.UserId)
                .IsRequired();
            b.HasMany(e => e.UserRoles)
                .WithOne()
                .HasForeignKey(ur => ur.UserId)
                .IsRequired();
        });

        modelBuilder.Entity<ApplicationRole>(b =>
        {
            b.HasMany(e => e.UserRoles)
                .WithOne(e => e.Role)
                .HasForeignKey(ur => ur.RoleId)
                .IsRequired();
            b.HasMany(e => e.RoleClaims)
                .WithOne(e => e.Role)
                .HasForeignKey(rc => rc.RoleId)
                .IsRequired();
        });
    }

当我打电话的时候 Script-Migration

CREATE TABLE [Executions] 
(
    [ExecutionID] INT NOT NULL IDENTITY,
    [UserID] INT NOT NULL,
    [TierID] INT NOT NULL,
    [UserId] NVARCHAR(450) NULL,

    CONSTRAINT [PK_Executions] PRIMARY KEY ([ExecutionID]),
    CONSTRAINT [FK_Executions_Tiers_TierID] 
        FOREIGN KEY ([TierID]) REFERENCES [Tiers] ([TierID]) 
                ON DELETE CASCADE,
    CONSTRAINT [FK_Executions_AspNetUsers_UserId] 
        FOREIGN KEY ([UserId]) REFERENCES [AspNetUsers] ([Id]) 
                ON DELETE NO ACTION
);

我怎样才能正确地忽略这个错误呢 UserID 从生成的表架构中删除字段?