Fatal error: Uncaught Error: Class 'Symfony\Bundle\FrameworkBundle\Test\WebTestCase' not found in /opt/lampp/htdocs/vendor/symfony/psr-http-message-bridge/Tests/Functional/ControllerTest.php:22 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/vendor/symfony/psr-http-message-bridge/Tests/Functional/ControllerTest.php on line 22