Your requirements could not be resolved to an installable set of packages. Problem 1 - infection/infection[0.27.0, ..., 0.27.11] require php ^8.1 -> your php version (8.0.30) does not satisfy that requirement. - Root composer.json requires infection/infection ^0.27.0 -> satisfiable by infection/infection[0.27.0, ..., 0.27.11].