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 (8.1.31) does not satisfy that requirement. Problem 2 - Root composer.json requires illuminate/contracts ^11.0 -> satisfiable by illuminate/contracts[v11.0.0, ..., v11.33.2], laravel/framework[v11.0.0, ..., v11.33.2]. - illuminate/contracts[v11.0.0, ..., v11.33.2] require php ^8.2 -> your php version (8.1.31) does not satisfy that requirement. - laravel/framework[v11.0.0, ..., v11.33.2] require php ^8.2 -> your php version (8.1.31) does not satisfy that requirement.