database driven application using code igniter framework

[eluser]subhashramesh[/eluser]
thanks for your reply.
i set in config.php file as $config['base_url'] = "https://127.0.0.1/CodeIgniter_1.7.1/";
in databse.php as
$active_group = "default";
$active_record = TRUE;

$db['default']['hostname'] = "localhost";
$db['default']['username'] = "root";
$db['default']['password'] = "";
$db['default']['database'] = "efo";
$db['default']['dbdriver'] = "mysql";
$db['default']['dbprefix'] = "";
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = "";
$db['default']['char_set'] = "utf8";
$db['default']['dbcollat'] = "utf8_general_ci";
i used url as https://localhost/CodeIgniter_1.7.1/index.php/Users
i am getting error as 404 page not found.could you please solve that.