[Madthumb]

Version: CodeIgniter 3.0
I was tying to add a custom session driver class base on: http://www.codeigniter.com/userguide3/li...a-database.
I changes:
1. Add $autoload['drivers'] = array('session'); in autoload.php
2. Add $config['sess_driver'] = 'foo'; in config.php
3. Copy the custom session class from above link and put it in application/libraries/Session/drivers/Session_foo.php
4. I run a test code: $this->session->set_userdata( $user_data );
5. Then I got this error: Session: Configured driver name is not valid, aborting.

Can anyone help me points out what did I do wrong? or am I missing any step?

Big thanks!

[Rufnex]

Have you edit the Class name from CI_Session_custom to CI_Session_foo in your e.g.?