laravel - php artisan serve

Hello. It is the first time that I did run the laravel server (on opensuse ofcourse!) using the command:

> php artisan serve

This is what I get:

    HP Warning:  Module "gd" is already loaded in Unknown on line 0
    PHP Warning:  require(/home/julian/Documentos/Programacion/LARAVEL/example-app/vendor/autoload.php): Failed to open stream: No such file or directory in /home/julian/Documentos/Programacion/LARAVEL/example-app/artisan on line 18
    PHP Fatal error:  Uncaught Error: Failed opening required '/home/julian/Documentos/Programacion/LARAVEL/example-app/vendor/autoload.php' (include_path='.:/usr/share/php8:/usr/share/php/PEAR') in /home/julian/Documentos/Programacion/LARAVEL/example-app/artisan:18
    Stack trace:
    #0 {main}
      thrown in /home/julian/Documentos/Programacion/LARAVEL/example-app/artisan on line 18

So I run the command:

composer update

And this is the console ouput

    PHP Warning:  Module "gd" is already loaded in Unknown on line 0 Loading composer repositories with package information Info from #StandWithUkraine Updating dependencies Your requirements could not be resolved to an installable set of packages.
      Problem 1
        - laravel/framework[v9.19.0, ..., 9.x-dev] require league/flysystem ^3.0.16 -> satisfiable by league/flysystem[3.0.16, ..., 3.x-dev].
        - league/flysystem[3.0.16, ..., 3.x-dev] require league/mime-type-detection ^1.0.0 -> satisfiable by league/mime-type-detection[1.0.0, ..., 1.11.0].
        - league/mime-type-detection[1.0.0, ..., 1.3.0] require php ^7.2 -> your php version (8.1.10) does not satisfy that requirement.
        - league/mime-type-detection[1.4.0, ..., 1.11.0] require ext-fileinfo * -> it is missing from your system. Install or enable PHP's fileinfo extension.
        - Root composer.json requires laravel/framework ^9.19 -> satisfiable by laravel/framework[v9.19.0, ..., 9.x-dev].
    To enable extensions, verify that they are enabled in your .ini files:
        - /etc/php8/cli/php.ini
        - /etc/php8/conf.d/ctype.ini
        - /etc/php8/conf.d/curl.ini
        - /etc/php8/conf.d/dom.ini
        - /etc/php8/conf.d/gd.ini
        - /etc/php8/conf.d/iconv.ini
        - /etc/php8/conf.d/intl.ini
        - /etc/php8/conf.d/mbstring.ini
        - /etc/php8/conf.d/openssl.ini
        - /etc/php8/conf.d/pdo.ini
        - /etc/php8/conf.d/pdo_sqlite.ini
        - /etc/php8/conf.d/phar.ini
        - /etc/php8/conf.d/sqlite3.ini
        - /etc/php8/conf.d/tokenizer.ini
        - /etc/php8/conf.d/xmlreader.ini
        - /etc/php8/conf.d/xmlwriter.ini
        - /etc/php8/conf.d/xsl.ini
        - /etc/php8/conf.d/zip.ini
        - /etc/php8/conf.d/zlib.ini You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode. Alternatively, you can run Composer with `--ignore-platform-req=ext-fileinfo` to temporarily ignore these required extensions.

the same output with composer install command.

The PHP version is 8.1.10
Composer version 2.4.1

I also delete the ; from the sentences of /etc/php8/cli/php.ini file.