Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest-plugin-arch ^3.0 -> satisfiable by pestphp/pest-plugin-arch[v3.0.0, 3.x-dev]. - pestphp/pest-plugin-arch[v3.0.0, ..., 3.x-dev] require php ^8.2 -> your php version (8.1.31) does not satisfy that requirement. Problem 2 - Root composer.json requires pestphp/pest-plugin-laravel ^3.0 -> satisfiable by pestphp/pest-plugin-laravel[v3.0.0, 3.x-dev]. - pestphp/pest-plugin-laravel[v3.0.0, ..., 3.x-dev] require php ^8.2.0 -> your php version (8.1.31) does not satisfy that requirement. Problem 3 - Root composer.json requires illuminate/contracts ^11.0 -> satisfiable by illuminate/contracts[v11.0.0, ..., 11.x-dev], laravel/framework[v11.0.0, ..., 11.x-dev]. - illuminate/contracts[v11.0.0, ..., 11.x-dev] require php ^8.2 -> your php version (8.1.31) does not satisfy that requirement. - laravel/framework[v11.0.0, ..., 11.x-dev] require php ^8.2 -> your php version (8.1.31) does not satisfy that requirement.