Help adding CI3 compatibility to Flexi Auth

Hi there,

I am trying to update flexi auth so it's compatible with CI3
https://github.com/haseydesign/flexi-auth

I've gone through the process of upgrading as per the user guide (http://www.codeigniter.com/userguide3/in...ading.html)

But I have run into the following error that I cannot fix the following error. Can anyone give me any ideas on how to fix this error. Guessing it's pretty simple, but since this is my first attempt at updating to 3.0 I am not sure.

PHP Code:

Severity: Error
Message: Class ‘CI_Flexi_auth_lite’ not found
Filename: core/Common.php
Line Number: 185 


I'm pretty sure the original developer has moved on from CI, but I'd like to be able to upgrade an existing project using flexi auth to take advantage of some features in CI3.

Any help greatly appreciated.