Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\ContainerBuilder' not found in /home/airandmehe/testlairetmoi/vendor/terminal42/contao-changelanguage/tests/bootstrap.php:41 Stack trace: #0 {main} thrown in /home/airandmehe/testlairetmoi/vendor/terminal42/contao-changelanguage/tests/bootstrap.php on line 41