UPGRADE AND GET ERROR : system/engine/loader.php on line 169

I get an error
this system/engine/loader.php on line 169
I searched for an answer, I found it
Here
viewtopic.php?f=183&t=165958

WHAT IS exactly <your_extension_name> I do not see this file

Extensions

Admin Extensions Controller

- admin/controller/extension/extension/<your_extension_name>.php

Inside each controllers that developers must create, ensure the paths now begins with:

Code: Select all
class ControllerExtensionExtensionExtensionname extends Controller {


extension/extension/<your_extension_name>


THANK YOU

its whatever extension you are working with or creating.

But there is a folder named like this in admin/controller/extension/extension


, then how it goes this path?