Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/www/swittelecom.com/test/laravel/vendor/symfony/var-dumper/Tests/Test/VarDumperTestTraitTest.php:17 Stack trace: #0 {main} thrown in /home/www/swittelecom.com/test/laravel/vendor/symfony/var-dumper/Tests/Test/VarDumperTestTraitTest.php on line 17