Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Core\Authorization\Voter\AbstractVoter' not found in /home/phprplacein/public_html/vendor/symfony/security-core/Tests/Authorization/Voter/Fixtures/MyVoter.php:11 Stack trace: #0 {main} thrown in /home/phprplacein/public_html/vendor/symfony/security-core/Tests/Authorization/Voter/Fixtures/MyVoter.php on line 11