Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/pataplou/www/patrick/pataplouf/vendor/symfony/flex/tests/PackageFilterTest.php:27 Stack trace: #0 {main} thrown in /home/pataplou/www/patrick/pataplouf/vendor/symfony/flex/tests/PackageFilterTest.php on line 27