Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.3 but your php version (8.1.34) does not satisfy that requirement. Problem 2 - Root composer.json requires codeigniter4/framework ^4.7 -> satisfiable by codeigniter4/framework[v4.7.0, v4.7.1, v4.7.2]. - codeigniter4/framework[v4.7.0, ..., v4.7.2] require php ^8.2 -> your php version (8.1.34) does not satisfy that requirement. Problem 3 - Root composer.json requires codeigniter/coding-standard ^1.9 -> satisfiable by codeigniter/coding-standard[v1.9.0, v1.9.1, v1.9.2, 1.x-dev]. - codeigniter/coding-standard[v1.9.0, ..., 1.x-dev] require php ^8.2 -> your php version (8.1.34) does not satisfy that requirement.