Default_Controller Sunf Folder Error

[eluser]razerone[/eluser]
Hello.

I have put my default controller in to a subfolder called common but it not working.

$route['default_controller'] = "common/home";
$route['404_override'] = '';

I have tried many way still no luck.

[eluser]noideawhattotypehere[/eluser]
try common/home/index

[eluser]razerone[/eluser]
No Luck