Edit File: Filesystem.php
<?php use Twig\Cache\FilesystemCache; class_exists('Twig\Cache\FilesystemCache'); @trigger_error(sprintf('Using the "Twig_Cache_Filesystem" class is deprecated since Twig version 2.7, use "Twig\Cache\FilesystemCache" instead.'), E_USER_DEPRECATED); if (\false) { /** @deprecated since Twig 2.7, use "Twig\Cache\FilesystemCache" instead */ class Twig_Cache_Filesystem extends FilesystemCache { } }