Fatal error: Uncaught Error: Class 'Neos\Flow\Security\Authentication\Controller\AbstractAuthenticationController' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Framework/Neos.Flow/Tests/Functional/Security/Fixtures/Controller/UsernamePasswordTestController.php:23 Stack trace: #0 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Framework/Neos.Flow/Tests/Functional/Security/Fixtures/Controller/UsernamePasswordTestController.php on line 23