Fatal error: Uncaught Error: Class 'Drupal\Core\Controller\ControllerBase' not found in /home/discovergreece/public_html/vendor/palantirnet/drupal-rector/fixtures/d8/rector_examples/src/Controller/EntityManagerController.php:10 Stack trace: #0 {main} thrown in /home/discovergreece/public_html/vendor/palantirnet/drupal-rector/fixtures/d8/rector_examples/src/Controller/EntityManagerController.php on line 10