SQLite Parameter count mismatch Error in Windows Phone 8.1

I am getting the following error: "Parameter count mismatch" while inserting the record to my database. I have debugged line by line , data is coming perfectly but is not inserting in the database. Following is my code:

 con = new SQLiteConnection(DatabasePath);
        var rows = from c in con.Table<City>()
                   select c;

        int count = rows.Count();

        try
        {
            if (count > 0)
            {
                using (var dbConn = new SQLiteConnection(DatabasePath))
                {
                    dbConn.RunInTransaction(() =>
                    {
                        dbConn.Insert(cities_list);
                    });
                } 

            }

        }
         catch (Exception ex)
        {

        }

Thanks in advance.