加载报表失败问题!在线等!!

CallData data = new CallData();
        data = (new CallFacade()).GetDataByAll();
       //data为数据dataSet
        ReportDocument Rd = new ReportDocument();
        string xpath = Server.MapPath(@"../system1/CrystalReport.rpt");
        Rd.Load(xpath);
        Rd.SetDataSource(data);
        CrystalReportViewer1.ReportSource = Rd;
        CrystalReportViewer1.DataBind();html代码::
 <form id="form1" runat="server">
    <div>
        <CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server" AutoDataBind="true" />
 
    
    </div>
    </form>(@"../system1/CrystalReport.rpt路径是对!!怎么会出现加载报表失败呢??在线等!!