jos-Error: Application Instantiation Error

Have you ever meet this error when installing your live site to your local computer? Nothing much we can understand from the error message like this:

jos-Error: Application Instantiation Error

After digging a few sites and messing up with my Joomla! installation, I found out that the main cause of this error is using APC as my session storage. After changing it to default value; which is database, the error gone.

Use your favorite code editor, open up configuration.php and change find this code.

public $session_handler = 'apc';

Change it to this:

public $session_handler = 'database';