codeigniter(版本2.2.0）中的URI重新路由问题

我很难在我的codeigniter版本（2.2.0）应用程序中重新路由URI。

这是我的routes.php

$route['details/(:num)'] = 'agent/manage_agents/$1';

在我的视图文件

foreach($data as $value) {?>
<a href="<?php base_url();?>details/<?php echo $value['id']; ?>" class="btn btn-primary">Manage</a>
}?>

但我会得到404错误。

在我的控制器文件中

class Agent extends CI_Controller {
   public function manage_agents($id)
    {
        echo $id;
    }   
}

更新

最后我找到了问题的原因。在我的routes.php 中

$route['(:any)'] = "spotmyticket/$1"; 

当隐藏这条线时，一切都很好。这是我的完整路线.php

$route['404_override'] = '';
$route['default_controller'] = "spotmyticket";
$route['ticket']="ticket";
$route['ticket/(:any)'] = $route['ticket'].'/$1';
$route['captcha'] = "captcha"; 
$route['captcha/(:any)'] = "captcha/$1";
$route['admin'] = "admin"; 
$route['admin/(:any)'] = "admin/$1";
$route['userdashboard'] = "userdashboard";
$route['userdashboard/(:any)'] = "userdashboard/$1"; 
$route['fbci'] = "fbci"; 
$route['fbci/(:any)'] = "fbci/$1";
$route['(:any)'] = "spotmyticket/$1";
$route['agent-management'] = 'agent/index';
$route['register'] = "agent/agent_register";
$route['test'] = 'agent/test';
$route['details/(:any)'] = 'agent/manage_agents/$1';

这里spotmyticket是我的站点的默认控制器