excel导出报错 about magicodes.ie HOT 3 CLOSED

[AutoMap(typeof(Standard))]//这是automap的映射配置
[ExcelImporter(IsLabelingError = true)]//这个模型同时也用于导出模板
[ExcelExporter(Name = "标准")]
public class ImportExcelDto
{
        public const int MaxLength = 1024;
        /// <summary>
        /// 规程类型
        /// </summary>
        [MaxLength(MaxLength)]
        [Display(Name = "名称")]
        [ExporterHeader("名称")]
        public string Name { get; set; }
}