Warning: require_once(/Symfony/Component/ClassLoader/UniversalClassLoader.php): failed to open stream: No such file or directory in /var/www/html/vendor/bundles/Sensio/Bundle/FrameworkExtraBundle/Tests/bootstrap.php on line 3

Fatal error: require_once(): Failed opening required '/Symfony/Component/ClassLoader/UniversalClassLoader.php' (include_path='.:/usr/share/php') in /var/www/html/vendor/bundles/Sensio/Bundle/FrameworkExtraBundle/Tests/bootstrap.php on line 3