Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/benjamincb/demos/acdg/vendor/symfony/notifier/Test/TransportFactoryTestCase.php:26 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg/vendor/symfony/notifier/Test/TransportFactoryTestCase.php on line 26