Fatal error: Class 'Illuminate\Console\Command' not found in /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Foundation/Console/OptimizeCommand.php on line 10

Call Stack:
    0.0006     246904   1. {main}() /var/www/html/dev/spa/vendor/laravel/framework/src/Illuminate/Foundation/Console/OptimizeCommand.php:0