Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in /home/www/swittelecom.com/test/laravel/vendor/symfony/http-kernel/Tests/Fixtures/DataCollector/CloneVarDataCollector.php:18 Stack trace: #0 {main} thrown in /home/www/swittelecom.com/test/laravel/vendor/symfony/http-kernel/Tests/Fixtures/DataCollector/CloneVarDataCollector.php on line 18