解析器错误描述：解析服务此请求所需的资源时发生错误。请查看以下特定的解析错误详细信息并适当地修改您的源文件。
解析器错误消息：“（默认）”不是属性“文化”的有效值。
源错误：
第 1 行：<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HomePage.aspx.cs" Inherits="FundingWebsiteAspnet.HomePage" 第 2 行：MasterPageFile="MasterPageForTheFundingWebsite.master" Culture="(默认)" %> 第 3 行：
源文件：/HomePage.aspx 行：1
还有这个错误消息Warning 1 C:\Users\shussain2\Documents\CTRP\FundingWebsiteAspnet\FundingWebsiteAspnet\HomePage.aspx: ASP.NET 运行时错误：无法加载文件或程序集 'Telerik.Web.UI, Version=2013.1.220.40, Culture =neutral, PublicKeyToken=121fae78165ba3d4' 或其依赖项之一。找到的程序集的清单定义与程序集引用不匹配。（HRESULT 异常：0x80131040） C:\Users\shussain2\Documents\CTRP\FundingWebsiteAspnet\FundingWebsiteAspnet\HomePage.aspx 1 1 CTRP
我能做些什么来解决这个问题？我有降级的想法，但我希望新控件与之兼容。
代码 HOMEPAGE.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HomePage.aspx.cs" Inherits="FundingWebsiteAspnet.HomePage"
MasterPageFile="MasterPageForTheFundingWebsite.master"
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<asp:Content ID="mainContent" ContentPlaceHolderID="mainContentPlaceholder" runat="server">
<head>
<link rel="stylesheet" type="text/css" href="StyleSheetForTheFundingWebsite.css" />
<style type="text/css">
.modalBackground
{
background-color: Gray;
filter: alpha(opacity=70);
opacity: 0.7;
border: 5px
border-color: Black;
border-style: solid;
}
.pnlBackGround
{
position: fixed;
top: 10%;
left: 10px;
width: 650px;
height: 300px;
background-color: White;
border: solid 3px black;
}
</style>
</head>
<form id="form1" runat="server">
<cc1:ToolkitScriptManager ID="TKSM" EnablePageMethods="true" EnableCdn="true" ScriptMode="Release"
runat="server">
</cc1:ToolkitScriptManager>
<asp:GridView ID="GridView1" runat="server" AllowPaging="False" AllowSorting="False"
AutoGenerateColumns="False" AutoGenerateEditButton="False" CellPadding="4"
DataKeyNames="Study_Number" Width="100%" SkinID="Summary" OnRowCommand="grd_ReturnItems_RowCommand"
DataSourceID="SqlDataSource1" ForeColor="#333333" GridLines="None" Height="236px"
OnSelectedIndexChanged="GridView1_SelectedIndexChanged">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:TemplateField >
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" >Edit</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField EditText="Vaishali" />
<asp:BoundField DataField="PI" HeaderText="PI" SortExpression="PI" />
<asp:BoundField DataField="Study_Number" HeaderText="Study_Number" ReadOnly="True"
SortExpression="Study_Number" />
<asp:BoundField DataField="Study_Title" HeaderText="Study_Title" SortExpression="Study_Title" />
<asp:BoundField DataField="Disease_Code" HeaderText="Disease_Code" SortExpression="Disease_Code" />
</Columns>
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
<RowStyle BackColor="#FFFBD6" ForeColor="#333333" />
<SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
<SortedAscendingCellStyle BackColor="#FDF5AC" />
<SortedAscendingHeaderStyle BackColor="#4D0000" />
<SortedDescendingCellStyle BackColor="#FCF6C0" />
<SortedDescendingHeaderStyle BackColor="#820000" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:adm_productionConnectionString %>"
SelectCommand="SELECT [PI], [Study Number] AS Study_Number, [Study Title] AS Study_Title, [Disease Code] AS Disease_Code FROM [Study_Disease_Code_association]">
</asp:SqlDataSource>
<cc1:ModalPopupExtender ID="mpe_EditReturnItemPopup" runat="server" TargetControlID="btn_Hidden1"
PopupControlID="EditReturnItemDialog" BackgroundCssClass="modalBackground" CancelControlID="btn_EditReturnItemCancel"
DropShadow="false" PopupDragHandleControlID="EditReturnItemDialogHeader" OkControlID="btnOk"
X="20" Y="100" />
<asp:Panel ID="EditReturnItemDialog" runat="server" Style="display: none; width: 300px"
CssClass="pnlBackGround">
<br />
Please Enter Disease Code :
<table>
<tr>
<td>
<br />
Select Disease Code Type:
<telerik:RadDropDownList ID="radDropDownDiseaseType" runat="server">
</telerik:RadDropDownList>
</td>
</tr>
<tr>
<td>
<br />
Select sub-category :
<telerik:RadDropDownList ID="radDropDownSubCat" runat="server">
</telerik:RadDropDownList>
</td>
</tr>
<tr>
<td>
Enter Meddra Code :
<telerik:RadDropDownList ID="radDropDownMeddra" runat="server">
</telerik:RadDropDownList>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btn_SaveEditReturnItem" runat="server" Text="Submit" OnClick="btn_SaveEditReturnItem_Click" />
<asp:Button ID="btn_EditReturnItemCancel" runat="server" Text="Cancel" />
<br />
<br />
<br />
</td>
</tr>
<tr>
<td>
<br />
<br />
<br />
</td>
</tr>
</table>
<br />
<br />
<center>
</center>
<asp:Button ID="btn_Hidden1" runat="server" Style="display: none" />
</asp:Panel>
</form>
</asp:Content>