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: Could not load file or assembly 'Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
Line 1: <%@ page title="" language="VB" masterpagefile="~/MasterPageSabteNam.master" autoeventwireup="false" inherits="printChap, App_Web_printchap.aspx.cdcab7d2" %>
Line 3: <%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
Line 4: Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %>
Line 5: <asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
On top of copying in the WRONG .DLL file, there may be other .DLL's that one relies on which you haven't considered. You cannot just copy whatever .DLL file it says it can't find into your project folder and expect it to work. More than likely, you'll be missing other dependent .DLL's that you won't get an error on.