Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/neondra/www/vendor/symfony/var-dumper/Tests/Cloner/VarClonerTest.php:26 Stack trace: #0 {main} thrown in /home/neondra/www/vendor/symfony/var-dumper/Tests/Cloner/VarClonerTest.php on line 26