Fatal error: Uncaught Error: Class 'Neos\FluidAdaptor\Core\ViewHelper\AbstractViewHelper' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Framework/Neos.FluidAdaptor/Tests/Unit/Core/Fixtures/TestViewHelper.php:4 Stack trace: #0 /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Framework/Neos.FluidAdaptor/Tests/Unit/Core/ViewHelper/AbstractViewHelperTest.php(25): require_once() #1 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Framework/Neos.FluidAdaptor/Tests/Unit/Core/Fixtures/TestViewHelper.php on line 4