Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires arhitector/yandex ^2.2 -> satisfiable by arhitector/yandex[2.2, 2.3.0]. - arhitector/yandex 2.2 requires laminas/laminas-diactoros ^2.5 -> satisfiable by laminas/laminas-diactoros[2.18.1, ..., 2.26.0]. - arhitector/yandex 2.3.0 requires laminas/laminas-diactoros ^2.17 -> satisfiable by laminas/laminas-diactoros[2.18.1, ..., 2.26.0]. - laminas/laminas-diactoros[2.18.1, ..., 2.25.2] require php ~8.0.0 || ~8.1.0 || ~8.2.0 -> your php version (8.4.17) does not satisfy that requirement. - laminas/laminas-diactoros 2.26.0 requires php ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 -> your php version (8.4.17) does not satisfy that requirement.