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