Your requirements could not be resolved to an installable set of packages. Problem 1 - symfony/clock[v6.2.0, ..., 6.4.x-dev] require php >=8.1 -> your php version (8.0.30) does not satisfy that requirement. - Root composer.json requires symfony/clock ^6.2 -> satisfiable by symfony/clock[v6.2.0, ..., 6.4.x-dev].