Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/dependency-injection ^7.1.2 -> satisfiable by symfony/dependency-injection[v7.1.2]. - symfony/dependency-injection v7.1.2 requires php >=8.2 -> your php version (8.1.29) does not satisfy that requirement. Problem 2 - symfony/dependency-injection v7.1.2 requires php >=8.2 -> your php version (8.1.29) does not satisfy that requirement. - matthiasnoback/symfony-dependency-injection-test 5.1.0 requires symfony/dependency-injection ^5.4 || ^6.2 || ^7.0 -> satisfiable by symfony/dependency-injection[v7.1.2]. - Root composer.json requires matthiasnoback/symfony-dependency-injection-test ^5.1 -> satisfiable by matthiasnoback/symfony-dependency-injection-test[5.1.0].