错误:文本、原语、图像、复选框不是StiStyleComponentType的有效值

对于报告，我在wpf中使用了刺激性软件。我的打印按钮代码是:

try
        {
            DataTable dta = new DataTable();
            DataSet1.dtDataTable dt = new DataSet1.dtDataTable();
            List<KalaClass> list = MetroDataGrid.ItemsSource as List<KalaClass>;
            foreach (var item in list)
            {
                var row = dt.NewRow();
                row["id"] = item.KalaID;
                row["name"] = item.KalaName;
                row["tedad"] = item.KalaTedad;
                row["pice"] = item.KalaPrice;
                row["info"] = item.KalaTozihat;
                row["date"] = item.KalaDate;
                dt.Rows.Add(row);
            }
            DataSet ds = new DataSet();
            ds.Tables.Add(dt);

            StiReport report = new StiReport();
            report.Load("sReport.mrt");
            report.Dictionary.Clear();
            report.RegData(ds);
            report.Dictionary.Synchronize();
            DateTime today =Convert.ToDateTime( DateTime.Today.ToShortDateString());
            (report.GetComponentByName("txtDate") as StiText).Text = convertDate.toShamsi(today);
            //(report.GetComponentByName("txtName") as StiText).Text = comboBox.SelectionBoxItem.ToString();
            //(report.GetComponentByName("Text1") as StiText).Text = txtid.Text;

            report.Show();
        }
        catch(Exception ex)
        {MessageBox.Show(ex.Message.ToString());
        }

我得到"Text, Primitive, Image, CheckBox不是StiStyleComponentType的有效值"

错误

  report.Load("sReport.mrt");

我试过了，但我找不到为什么我得到这个错误。