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