Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/www/swittelecom.com/test/laravel/vendor/symfony/console/Tests/Tester/ApplicationTesterTest.php:19 Stack trace: #0 {main} thrown in /home/www/swittelecom.com/test/laravel/vendor/symfony/console/Tests/Tester/ApplicationTesterTest.php on line 19