Fatal error: Uncaught Error: Class 'Assetic\FilterManager' not found in /home/spadates/www/win4u.test/vendor/symfony/assetic-bundle/Symfony/Bundle/AsseticBundle/FilterManager.php:22 Stack trace: #0 {main} thrown in /home/spadates/www/win4u.test/vendor/symfony/assetic-bundle/Symfony/Bundle/AsseticBundle/FilterManager.php on line 22