Your requirements could not be resolved to an installable set of packages. Problem 1 - friendsofphp/php-cs-fixer[v3.1.0, ..., v3.3.0] require php ^7.1.3 || ^8.0 -> your php version (7.1; overridden via config.platform, actual: 8.1.26) does not satisfy that requirement. - friendsofphp/php-cs-fixer v3.2.1 requires php ^7.2 || ^8.0 -> your php version (7.1; overridden via config.platform, actual: 8.1.26) does not satisfy that requirement. - friendsofphp/php-cs-fixer[v3.3.1, ..., v3.4.0] require php ^7.2.5 || ^8.0 -> your php version (7.1; overridden via config.platform, actual: 8.1.26) does not satisfy that requirement. - friendsofphp/php-cs-fixer[v3.5.0, ..., v3.40.0] require php ^7.4 || ^8.0 -> your php version (7.1; overridden via config.platform, actual: 8.1.26) does not satisfy that requirement. - friendsofphp/php-cs-fixer v3.21.1 requires php ^8.0.1 -> your php version (7.1; overridden via config.platform, actual: 8.1.26) does not satisfy that requirement. - Root composer.json requires friendsofphp/php-cs-fixer ^3.1 -> satisfiable by friendsofphp/php-cs-fixer[v3.1.0, ..., v3.40.0].