我在 .NET CORE 2.2 項(xiàng)目中使用 AutoMapper。我得到這個(gè)異常：缺少類型映射配置或映射不受支持。映射類型：SaveFridgeTypeModel -> FridgeType College.Refrigirator.Application.SaveFridgeTypeModel -> College.Refrigirator.Domain.FridgeType在這一行：var fridgeType = _mapper.Map<SaveFridgeTypeModel, FridgeType>(model);這是 FridgeType 類的定義：public class FridgeType : IEntity , IType{    public FridgeType()    {        Fridges = new HashSet<Fridge>();    }    public int ID { get; set; }    //Description input should be restricted     public string Description { get; set; }    public string Text { get; set; }    public ICollection<Fridge> Fridges { get; private set; }}這是 SaveFridgeTypeModel 類的定義：public class SaveFridgeTypeModel{    public string Description { get; set; }    public string Text { get; set; }}我添加這一行：    services.AddAutoMapper(typeof(Startup));Startup類中的ConfigureServices函數(shù)。更新我忘記在帖子中添加映射配置。這是映射配置類：public class ViewModelToEntityProfile : Profile{    public ViewModelToEntityProfile()    {        CreateMap<SaveFridgeTypeModel, FridgeType>();    }}知道為什么我會(huì)得到上面的異常嗎？