Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Kernel' not found in C:\xampp\htdocs\fiveplus\vendor\symfony\http-kernel\Tests\Fixtures\123\Kernel123.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\fiveplus\vendor\symfony\http-kernel\Tests\Fixtures\123\Kernel123.php on line 17