ReportViewer的TypeName出错问题，求解？？

<div>
        <rsweb:ReportViewer ID="ReportViewer1" runat="server" Font-Names="Verdana" Font-Size="8pt"
            Height="400px" Width="400px">
            <LocalReport ReportPath="Module\SALE\Report1.rdlc">
                <DataSources>
                    <rsweb:ReportDataSource DataSourceId="ObjectDataSource1" Name="DataSet1_Employee" />
                </DataSources>
            </LocalReport>
        </rsweb:ReportViewer>
        <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetData"
           TypeName="DataSet1TableAdapters.EmployeeTableAdapter" ></asp:ObjectDataSource>
    
    </div>
会提示ReportViewer的TypeName出错问题，我都是按步骤对它进行添加数据源的呀，