Fatal error: Uncaught Error: Class 'Matthias\SymfonyDependencyInjectionTest\PhpUnit\AbstractExtensionTestCase' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/core-bundle/Tests/DependencyInjection/SonataCoreExtensionTest.php:16 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/core-bundle/Tests/DependencyInjection/SonataCoreExtensionTest.php on line 16