Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/marcgron/www/SSA/v2/vendor/symfony/form/Test/FormIntegrationTestCase.php:25 Stack trace: #0 {main} thrown in /home/marcgron/www/SSA/v2/vendor/symfony/form/Test/FormIntegrationTestCase.php on line 25