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