Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/devypfrfhn/corporation-https.fr/vendor/symfony/var-dumper/Tests/Test/VarDumperTestTraitTest.php:17 Stack trace: #0 {main} thrown in /home/devypfrfhn/corporation-https.fr/vendor/symfony/var-dumper/Tests/Test/VarDumperTestTraitTest.php on line 17