Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires respect/validation ^2.3 -> satisfiable by respect/validation[2.3.0, ..., 2.3.7]. - respect/validation[2.3.0, ..., 2.3.7] require php ^8.1 || ^8.2 -> your php version (8.0.30) does not satisfy that requirement.