Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit 11.4.2 -> satisfiable by phpunit/phpunit[11.4.2]. - phpunit/phpunit 11.4.2 requires php >=8.2 -> your php version (8.1.30) does not satisfy that requirement. Problem 2 - laminas/laminas-test 4.8.0 requires phpunit/phpunit ^10.0.0 -> found phpunit/phpunit[10.0.0, ..., 10.5.37] but it conflicts with your root composer.json require (11.4.2). - laminas/laminas-test[4.9.0, ..., 4.10.2] require phpunit/phpunit ^10.4 -> found phpunit/phpunit[10.4.0, ..., 10.5.37] but it conflicts with your root composer.json require (11.4.2). - Root composer.json requires laminas/laminas-test ^4.8 -> satisfiable by laminas/laminas-test[4.8.0, ..., 4.10.2].