Why is controller not created in laravel using terminal?

Question

Laravel

I am using phpstorm compiler and decided to create a controller using terminal. I enter
php artisan make:controller PostController
and it gives me the following error:

D:\OpenServer\domains\localhost\cannabis>php artisan make:controller PostController

Fatal error: Call to undefined function Illuminate\Foundation\Bootstrap\mb_internal_encoding() in D:\OpenServer\domains\localhost\cannabis\vendor\laravel\framework\src\Illuminate\Founda
tion\Bootstrap\LoadConfiguration.php on line 43

With what it can be connected?

Answer 1

With the fact that the mbstring extension is not worth it .
Installation instructions for Windows.