我初次运行pageadmin出现这样的错误 [复制链接]

Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: The base class includes the field 'Panel1', but its type (System.Web.UI.WebControls.Panel) is not compatible with the type of control (System.Web.UI.WebControls.PlaceHolder).

Source Error:


Line 57:  </tr>
Line 58: </table>
Line 59: <asplaceHolder id="Panel1" runat="server">
Line 60:
Line 61: <table border=0 cellpadding=0 cellspacing=0 width=100%>


Source File: /install/index.aspx    Line: 59


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Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42