No definition for parameter error

 protected void BtnSendToDatabase_Click(object sender, EventArgs e)
        {
            foreach (DataRow row in dt.Rows)
            {
                Console.WriteLine(row["name"].ToString());
            }

            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "INSERT INTO Table1 (Company_Name) VALUES (@compName)";
            cmd.Parameters.AddWithValue("@compName", TxtName.Text);
            
            foreach (DataRow row in dt.Rows)
            {
                cmd.Parameter.AddWithValue("@compName", row["name"].ToString());
                cmd.ExecuteNonQuery();
            }

            cmd.Dispose();
            conn.Close();
            conn.Dispose();
        }