Fatal error: Uncaught Error: Class 'Symfony\Component\Finder\Iterator\MultiplePcreFilterIterator' not found in /var/www/typo3/vendor/symfony/finder/Iterator/FilenameFilterIterator.php:21 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/symfony/finder/Iterator/FilenameFilterIterator.php on line 21