Laravel error on php artisan serve

Error on php artisan serve

PHP Fatal error: Uncaught exception ReflectionException with message

Class App\Console\Kernel does not exist in 
/home/blog/vendor/laravel/framework/src/Illuminate/
Container/Container.php:719
Stack trace:
#0 /home/blog/vendor/laravel/framework/src/Illuminate/Container/
Container.php(719): ReflectionClass->__construct(App\\Console\\Ker...)
#1 /home/blog/vendor/laravel/framework/src/Illuminate/Container/
Container.php(598): 
Illuminate\Container\Container->build(App\\Console\\Ker...)

P.S. Class App\Console\Kernel does exist

via Cristal