Crystal report load report error

when i click on button then an error occure Load report failed.

My code is:

ReportDocument cryrpt = new ReportDocument();

  private void button1_Click(object sender, EventArgs e)
        {
                SqlConnection sqlcon = new SqlConnection("Data Source=.\\sqlexpress;Initial Catalog=Company;Integrated Security=True");
                SqlDataAdapter dap = new SqlDataAdapter("select * from tbl_addemp", sqlcon);
                DataSet ds = new DataSet();
                dap.Fill(ds, "tbl_addemp");

                cryrpt.Load("~/CrystalReport1.rpt");
                cryrpt.SetDataSource(ds);
                crystalReportViewer1.ReportSource = cryrpt;
        }