Fatal error: Class 'Symfony\Component\HttpKernel\Client' not found in /var/www/html/dev/spa/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/Fixtures/TestClient.php on line 17

Call Stack:
    0.0003     234736   1. {main}() /var/www/html/dev/spa/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/Fixtures/TestClient.php:0