Fatal error: Class 'Symfony\Component\HttpKernel\Client' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Foundation/Testing/Client.php on line 9

Call Stack:
    0.0003     238888   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Foundation/Testing/Client.php:0