Edit File: CacheException.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\Exception; use Psr\Cache\CacheException as Psr6CacheInterface; use Psr\SimpleCache\CacheException as SimpleCacheInterface; if (interface_exists(SimpleCacheInterface::class)) { class CacheException extends \Exception implements Psr6CacheInterface, SimpleCacheInterface { } } else { class CacheException extends \Exception implements Psr6CacheInterface { } }