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 (8.1.32) does not satisfy that requirement. Problem 2 - Root composer.json requires pestphp/pest-plugin-arch ^3.0 -> satisfiable by pestphp/pest-plugin-arch[v3.0.0, v3.1.0, 3.x-dev]. - pestphp/pest-plugin-arch[v3.1.0, ..., 3.x-dev] require php ^8.2 -> your php version (8.1.32) does not satisfy that requirement. Problem 3 - Root composer.json requires laravel/framework ^12.0||^11.0 -> satisfiable by laravel/framework[v11.0.0, ..., 11.x-dev, v12.0.0, ..., 12.x-dev]. - laravel/framework[v11.0.0, ..., 11.x-dev, v12.0.0, ..., 12.x-dev] require php ^8.2 -> your php version (8.1.32) does not satisfy that requirement.