Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/process ^7.1.8 -> satisfiable by symfony/process[v7.1.8]. - symfony/process v7.1.8 requires php >=8.2 -> your php version (8.1.30) does not satisfy that requirement. Problem 2 - Root composer.json requires friendsofphp/php-cs-fixer ^3.64.0 -> satisfiable by friendsofphp/php-cs-fixer[v3.64.0]. - friendsofphp/php-cs-fixer v3.64.0 requires symfony/process ^5.4 || ^6.0 || ^7.0 -> satisfiable by symfony/process[v7.1.8]. - symfony/process v7.1.8 requires php >=8.2 -> your php version (8.1.30) does not satisfy that requirement.