Fatal error: Uncaught Error: Class 'Matthias\SymfonyConfigTest\PhpUnit\AbstractConfigurationTestCase' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/core-bundle/Tests/DependencyInjection/ConfigurationTest.php:17 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/core-bundle/Tests/DependencyInjection/ConfigurationTest.php on line 17