I am getting error while compilation Fatal error: Class ‘CController’ not found in G:\wamp64\www\slivermoon_live\app\code\Ubertheme\Ubdatamigration\lib\protected\components\Controller.php
on line 6
The issue you mentioned still refers to file / folder permission. Kindly check again. If you can access our migration tool backend, then you need to delete the folder at: app\code\Ubertheme\Ubdatamigration\lib.
Hope that helps.