Fatal error: Uncaught Error: Interface "Symfony\Component\Config\FileLocatorInterface" not found in D:\Application\www\E-Tracking\vendor\symfony\routing\Tests\Loader\FileLocatorStub.php:7 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\symfony\routing\Tests\Loader\FileLocatorStub.php on line 7