Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires laminas/laminas-stdlib ^3.19 -> satisfiable by laminas/laminas-stdlib[3.19.0]. - laminas/laminas-stdlib 3.19.0 requires php ~8.1.0 || ~8.2.0 || ~8.3.0 -> your php version (8.4.0-dev) does not satisfy that requirement.