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