Server Error in Application.

Hi

  I am getting below error - 

Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS0433: The type 'ServerReport' exists in both 'Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' and 'Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'

Source Error:

Line 370:        
Line 371:        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
Line 372:        private void @__BuildControl__control10(Microsoft.Reporting.WebForms.ServerReport @__ctrl) {
Line 373:            
Line 374:            #line 19 "C:\Users\jai\Desktop\MyApplication\MyApplication\Reports\Reports.aspx"

********************* Home Controller 

public class HomeController : Controller
    {
        UserDb dbUser = new UserDb();
        public ActionResult Index()
        {
            // return View();
            return Redirect("../Reports/Reports.aspx");
        }

************************** Aspx Page

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Reports.aspx.cs" Inherits="MyApplication.Reports.Reports" %>

<%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %>

************************ Web.Config

Thanks