这是我得到的错误：
在表“Battlestation”上引入FOREIGN KEY约束“FK_Battlestation_AspNetUsers_UserId”可能会导致循环或多个级联路径。请指定ON UPDATE NO ACTION或ON UPDATE NO ACTION，或修改其他FOREIGN KEY约束。无法创建约束或索引。请参阅以前的错误。
这是包含带有外键的属性的模型：

public class Setup{
    public int Id { get; set; }
    public string UserId {  get; set; } = string.Empty;
    public string SetupName { get; set; }
    public string SetupDesc { get; set; }
    [NotMapped]
    public IFormFile SetupImgFile { get; set; }
    public string ImgPath { get; set; } = string.Empty;
    [NotMapped]
    public bool IsFavourited { get; set; }
    // Navigation property for users who have favorited this setup
    [ForeignKey("UserId")]
    public ApplicationUser? FavouritedByUser { get; set; }
    public Setup()
    {
        
    }
}

字符串
}
应用程序用户：

using Microsoft.AspNetCore.Identity;
using System.ComponentModel.DataAnnotations;
namespace BattlestationHub.Models
{
    public class ApplicationUser : IdentityUser
    {
        [Required(ErrorMessage = "Display name is required.")]
        [StringLength(50, ErrorMessage = "Display name cannot exceed 50 characters.")]
        [UniqueDisplayName]
        public string DisplayName { get; set; } = string.Empty;
        // Navigation property for setups that the user has favorited
        public ICollection<Setup> Favourites { get; set; } = new List<Setup>();
    }
}

型