Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.2 but your php version (8.1.34) does not satisfy that requirement. Problem 2 - Root composer.json requires astrotomic/steam-sdk ^2.0.0 -> satisfiable by astrotomic/steam-sdk[2.0.0, 2.1.0, 2.2.0]. - astrotomic/steam-sdk[2.0.0, ..., 2.2.0] require saloonphp/saloon ^3.0 -> found saloonphp/saloon[v3.0.0, ..., v3.15.0] but it conflicts with your root composer.json require (^4.0). Problem 3 - Root composer.json requires saloonphp/pagination-plugin ^2.3.0 -> satisfiable by saloonphp/pagination-plugin[v2.3.0]. - saloonphp/pagination-plugin v2.3.0 requires php ^8.2 -> your php version (8.1.34) does not satisfy that requirement. Problem 4 - Root composer.json requires saloonphp/saloon ^4.0 -> satisfiable by saloonphp/saloon[v4.0.0, v4.0.1]. - saloonphp/saloon[v4.0.0, ..., v4.0.1] require php ^8.2 -> your php version (8.1.34) does not satisfy that requirement.