Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^11.4.3 -> satisfiable by phpunit/phpunit[11.4.3]. - phpunit/phpunit 11.4.3 requires php >=8.2 -> your php version (8.1.30) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/process ^7.1.7 -> satisfiable by symfony/process[v7.1.7]. - symfony/process v7.1.7 requires php >=8.2 -> your php version (8.1.30) does not satisfy that requirement.