Edit File: FilesystemAdapter.php
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Cache\Adapter; use Symfony\Component\Cache\Marshaller\DefaultMarshaller; use Symfony\Component\Cache\Marshaller\MarshallerInterface; use Symfony\Component\Cache\PruneableInterface; use Symfony\Component\Cache\Traits\FilesystemTrait; class FilesystemAdapter extends AbstractAdapter implements PruneableInterface { use FilesystemTrait; public function __construct(string $namespace = '', int $defaultLifetime = 0, string $directory = null, MarshallerInterface $marshaller = null) { $this->marshaller = $marshaller ?? new DefaultMarshaller(); parent::__construct('', $defaultLifetime); $this->init($namespace, $directory); } }