v10导出报错

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问题描述：
正常调用：
$('#exportexecl').on('click', function () {
            var workbook = new GC.Spread.Sheets.Workbook(document.getElementById("ordertable"));
            console.log(workbook.toJSON());
            var execlIo = new GC.Spread.Excel.IO();
            var fileName = "订单" + '.xlsx';
            console.log(fileName);
            var json = JSON.stringify(workbook.toJSON());
            console.log(json);
            execlIo.save(json, function (blob) {
                  saveAs(blob,fileName);
            }, function (e)
            {
                  console.log(e);
            }
            );
         });
报错如下：