Your requirements could not be resolved to an installable set of packages. Problem 1 - symfony/options-resolver v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. - friendsofphp/php-cs-fixer v3.40.2 requires symfony/options-resolver ^5.4 || ^6.0 || ^7.0 -> satisfiable by symfony/options-resolver[v7.0.0]. - friendsofphp/php-cs-fixer is locked to version v3.40.2 and an update of this package was not requested.