Parser Error in application.

Parser Error message: 'VRS_Page_2.COIT' is not allowed here because it does not extend class 'System.Web.Ul.Page'.

Line 1:<%@ Page Language="C#" AutoEventWireup="true"" CodeBehind="COIT.aspx.cs" Inherits="VRS_Page_2.COIT" %>

SOurce File: /default.aspx Line:1

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
namespace VRS_Page_2
{
public partial class COIT : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void DropDownList1_lSelectedIndexChanged(object sender, EventArgs e)
{
//if (DropDownList1.SelectedValue == "COIT1")
//{
// //display calendar info
// //Calendar1.SelectedDates.Add(Convert.ToDateTime("2/10/2011"));
// //Calendar1.SelectedDates.Add(Convert.ToDateTime("2/12/2011"));
//}
}
protected void Calendar_1_SelectionChanged(object sender, EventArgs e)
{
DateTime value = Calendar_1.SelectedDate;
Session["selectedDate"] = value;
Session["SelectedVenueID"] = ddlVenueName.SelectedValue;
Response.Redirect("Event_form.aspx");
}
}
}