CakePHP ROOT constant

Question

The CakePHP ROOT constant, where should it point to?

Answer 1

ROOT should be set to the path of the directory that contains your app folder.

Answer 2

ROOT Constant is defined in webroot/index.php

and by default it gives the full path to the directory which holds "app", WITHOUT a trailing DS

means "D:\xampp\htdocs\cake2.2.1" if my cakePHP set up resides in Cake2.2.1 directory on xampp