Controller

// 新增洗澡紀錄
[HttpPost("{babyid}")]
        public ActionResult<Baby_Record_Entity> addBatheTime(int      
        babyid,[FromBody] BatheDto value)
        {
            var insert = 
            _Baby_Record_BatheService.creatBatheTime(babyid, value);
            return CreatedAtAction(nameof(addBatheTime), new { id = 
            insert.Id }, insert);
        }

Service

//新增洗澡時間
        public Baby_Record_Entity creatBatheTime(int id,BatheDto 
        value)
        {
            Baby_Record_Entity insert = new Baby_Record_Entity
            {
                Baby = id,
                time = value.time,
                remark = value.remake
            };
            _MyDbContext.Add(insert);
            _MyDbContext.SaveChanges();
            return insert;
        }

模型

namespace BabyRecords_Server.Entities
{
    public class Baby_Record_Entity
    {
        [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]

        public int Id { get; set; }
        //嬰兒外鍵id
        public virtual Baby_info_Entity Baby { get; set; }

        public DateTime time { get; set; }

        public string remark { get; set; }
  
        public int recordClass { get; set; }

    }
}

外鍵模型

namespace BabyRecords_Server.Entities
{
    public class Baby_info_Entity
    {
     
        [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]

        public int Id { get; set; }

        public virtual User_Entity Users { get; set; }

        public virtual Family_Group_Entity familGroup { get; set; }

        public string babyName { get; set; }

        public DateTime babyBirthday { get; set; }

        public virtual ICollection<Baby_Record_Entity> babyrecord { 
        get; set; }
    }
}

在Services的 Baby = id, 這邊會報錯
Cannot implicitly convert type 'int' to 'BabyRecords_Server.Entities.Baby_info_Entity'

請問是哪邊出了問題