Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Core\Authentication\Token\AbstractToken' not found in /home/benjamincb/demos/acdg-site/vendor/symfony/framework-bundle/Test/TestBrowserToken.php:22 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/symfony/framework-bundle/Test/TestBrowserToken.php on line 22