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