Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/console ^7 -> satisfiable by symfony/console[v7.0.0-BETA1, ..., 7.1.x-dev]. - symfony/console[v7.0.0-BETA1, ..., 7.1.x-dev] require php >=8.2 -> your php version (7.3.33) does not satisfy that requirement. Problem 2 - friendsofphp/php-cs-fixer[v2.18.0, ..., v2.19.3] require symfony/console ^3.4.43 || ^4.1.6 || ^5.0 -> found symfony/console[v3.4.43, ..., 3.4.x-dev, v4.1.6, ..., 4.4.x-dev, v5.0.0-BETA1, ..., 5.4.x-dev] but it conflicts with your root composer.json require (^7). - friendsofphp/php-cs-fixer[v3.0.0-beta.1, ..., v3.3.1] require symfony/console ^4.4.20 || ^5.1.3 -> found symfony/console[v4.4.20, ..., 4.4.x-dev, v5.1.3, ..., 5.4.x-dev] but it conflicts with your root composer.json require (^7). - friendsofphp/php-cs-fixer v3.3.2 requires symfony/console ^5.1.3 -> found symfony/console[v5.1.3, ..., 5.4.x-dev] but it conflicts with your root composer.json require (^7). - friendsofphp/php-cs-fixer v3.4.0 requires symfony/console ^4.4.20 || ^5.1.3 || ^6.0 -> found symfony/console[v4.4.20, ..., 4.4.x-dev, v5.1.3, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev] but it conflicts with your root composer.json require (^7). - friendsofphp/php-cs-fixer[v3.5.0, ..., v3.41.0] require php ^7.4 || ^8.0 -> your php version (7.3.33) does not satisfy that requirement. - friendsofphp/php-cs-fixer v3.21.1 requires php ^8.0.1 -> your php version (7.3.33) does not satisfy that requirement. - Root composer.json requires friendsofphp/php-cs-fixer ^2.18|^3.0 -> satisfiable by friendsofphp/php-cs-fixer[v2.18.0, ..., v2.19.3, v3.0.0-beta.1, ..., v3.41.0].