c# - 找不到方法：'System.Web.UI.Control System.Web.UI.UpdatePanel.get_ContentTemplateContainer()'

Question

我在 mvc 项目中的 aspx 中有 reportviewer

<form id="form1" runat="server">

    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>                           
        <rsweb:ReportViewer ID="ReportViewer1" runat="server" AsyncRendering="False" Width="800"></rsweb:ReportViewer>            
    </div>
</form>

我收到此错误：

 Method not found: 'System.Web.UI.Control System.Web.UI.UpdatePanel.get_ContentTemplateContainer()'.

Reportviewer被引用。我有这个web.config

<assemblies>
    <add assembly="Microsoft.Build.Framework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
    <add assembly="Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845DCD8080CC91" />
    <add assembly="Microsoft.ReportViewer.Common, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845DCD8080CC91" />
</assemblies>

<add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
</handlers>