i face an error to create a crystal report in asp.net

using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;

public partial class admin_adminreports : System.Web.UI.Page
{
    DataClassesDataContext db = new DataClassesDataContext();
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            CrystalReportViewer1.Visible = true;

            var query = (from s in db.Books
                         join d in db.Bookings on s.bookid equals d.bookid
                         orderby s.bookid
                         select new
                        {
                            s.bookid,
                            s.Screen_id,
                            s.Movie_id,
                            s.Show_id,
                            s.Fare_id,
                            s.tickets,
                            s.total,
                            s.bookdate,
                            d.userid,
                            d.Seat_id
                        }).ToList();

            ReportDocument report = new ReportDocument();
            report.FileName = Server.MapPath("CrystalReport.rpt");
            report.SetDataSource(query);
            CrystalReportViewer1.ReportSource = report;
        }
    }
}