Code Igniter 3 and Facebook API

Hello,

I am completely new to the Facebook API. I am trying to include FacebookSession class in to the Code Igniter 3 controller as told here:

https://developers.facebook.com/docs/php...rted/4.0.0

I included the file "FacebookSession.php" outside the class definition and trying to call FacebookSession:etDefaultApplication('YOUR_APP_ID', 'YOUR_APP_SECRET'); inside the construct function. But i get:
"FacebookSession' not found in line..." error.

How can i make FB work with Code Igniter 3?

Their GitHub page ( https://github.com/facebook/facebook-php-sdk-v4 ) has a "Minimal example" for using the SDK without Composer.

Bonfire

Practical CodeIgniter 3
CodeIgniter Testing Guide