View file phpBB3/vendor/twig/twig/lib/Twig/Error/Syntax.php

<?php

use Twig\Error\SyntaxError;

class_exists('Twig\Error\SyntaxError');

@trigger_error('Using the "Twig_Error_Syntax" class is deprecated since Twig version 2.7, use "Twig\Error\SyntaxError" instead.', \E_USER_DEPRECATED);

if (false) {
    /** @deprecated since Twig 2.7, use "Twig\Error\SyntaxError" instead */
    class Twig_Error_Syntax extends SyntaxError
    {
    }
}