Fatal error: Uncaught Error: Class 'Matthias\SymfonyDependencyInjectionTest\PhpUnit\AbstractExtensionConfigurationTestCase' not found in /home/benjamincb/demos/acdg-site/vendor/symfony-cmf/routing-bundle/tests/Unit/DependencyInjection/ConfigurationTest.php:20 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/symfony-cmf/routing-bundle/tests/Unit/DependencyInjection/ConfigurationTest.php on line 20