Fatal error: Uncaught Error: Class 'PHPUnit\Framework\Constraint\Constraint' not found in /var/www/html/vendor/symfony/dom-crawler/Test/Constraint/CrawlerSelectorAttributeValueSame.php:17 Stack trace: #0 {main} thrown in /var/www/html/vendor/symfony/dom-crawler/Test/Constraint/CrawlerSelectorAttributeValueSame.php on line 17