Fatal error: Class 'Symfony\Component\Console\Command\Command' not found in /var/www/html/dev/spa/vendor/symfony/console/Symfony/Component/Console/Tests/Fixtures/DescriptorCommand2.php on line 19

Call Stack:
    0.0004     236864   1. {main}() /var/www/html/dev/spa/vendor/symfony/console/Symfony/Component/Console/Tests/Fixtures/DescriptorCommand2.php:0