Twig GlobalsInterface ломает панель инструментов отладки Symfony

Симфони 4.3.1

У меня есть Twig-Extension, в котором я глобально добавляю переменные в Twig. Как только я реализую Twig\Extension\GlobalsInterface в своем классе, панель инструментов отладки Symfony просто отображает «Произошла ошибка при загрузке панели инструментов веб-отладки». Однако переменные прекрасно добавляются в глобальную область видимости.

Вот мое расширение:

<?php

namespace App\Twig;

use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Doctrine\ORM\EntityManagerInterface;
use Twig\Extension\AbstractExtension;
use Twig\Extension\GlobalsInterface;

class GlobalVarsExtension extends AbstractExtension implements GlobalsInterface
{
    protected $em;

    protected $tokenStorage;

    protected $authorizationChecker;

    public function __construct(EntityManagerInterface $em, AuthorizationCheckerInterface $authorizationChecker, TokenStorageInterface $tokenStorage)
    {
        $this->em = $em;
        $this->tokenStorage = $tokenStorage;
        $this->authorizationChecker = $authorizationChecker;
    }


    public function getGlobals()
    {
        $globalVars = [];

        if ($this->authorizationChecker->isGranted('IS_AUTHENTICATED_FULLY')) {
            if (null !== $token = $this->tokenStorage->getToken()) {
                $globalVars['user'] = $token->getUser();
            }
        }

        return $globalVars;
    }
}

Это интерфейс, который я реализую:

<?php

/*
 * This file is part of Twig.
 *
 * (c) Fabien Potencier
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Twig\Extension;

/**
 * Enables usage of the deprecated Twig\Extension\AbstractExtension::getGlobals() method.
 *
 * Explicitly implement this interface if you really need to implement the
 * deprecated getGlobals() method in your extensions.
 *
 * @author Fabien Potencier <[email protected]>
 */
interface GlobalsInterface
{
    /**
     * Returns a list of global variables to add to the existing list.
     *
     * @return array An array of global variables
     */
    public function getGlobals();
}

class_alias('Twig\Extension\GlobalsInterface', 'Twig_Extension_GlobalsInterface');

Я следовал их документации по добавлению глобальных переменных: https://twig.symfony.com/doc/2.x/advanced.html#id1

Вот журнал изменений от Twig, в котором указано, что метод устарел: https://twig.symfony.com/doc/1.x/deprecated.html#extensions

Что мне не хватает? Или есть другой подход, добавляющий глобальные переменные?

Изменить:

После осознания того, что я полностью пропустил журнал ошибок symfony, и ошибка возникает по совершенно другой причине...

Журнал ошибок:

[2019-06-13 15:49:18] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException: "The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL." at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php line 49 {"exception":"[object] (Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49)"} []
[2019-06-13 15:49:18] request.CRITICAL: Exception thrown when handling an exception (Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException: The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php line 49) {"exception":"[object] (Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49)"} []
[2019-06-13 15:49:18] php.CRITICAL: Uncaught Exception: The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. {"exception":"[object] (Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49, Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49)"} []
[2019-06-13 15:49:18] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException: "The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL." at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php line 49 {"exception":"[object] (Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49, Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49)"} []
[2019-06-13 15:49:18] request.CRITICAL: Exception thrown when handling an exception (Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException: The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php line 49) {"exception":"[object] (Symfony\\Component\\Security\\Core\\Exception\\AuthenticationCredentialsNotFoundException(code: 0): The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL. at /var/www/rekkt.de/vendor/symfony/security-core/Authorization/AuthorizationChecker.php:49)"} []

Изменить2:

Итак, с данным журналом ошибок это то, что я изменил, и теперь он работает хорошо.

public function getGlobals()
    {
        $globalVars = [];

        if (null !== $token = $this->tokenStorage->getToken()) {
            $globalVars['user'] = $token->getUser();
        }

        return $globalVars;
    }