Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.4 but your php version (8.1.31) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/intl ^v7.2.0 -> satisfiable by symfony/intl[v7.2.0-BETA1, ..., 7.3.x-dev]. - symfony/intl[v7.2.0-BETA1, ..., 7.3.x-dev] require php >=8.2 -> your php version (8.1.31) does not satisfy that requirement. Problem 3 - Root composer.json requires nunomaduro/collision ^v8.6.0 -> satisfiable by nunomaduro/collision[v8.6.0, v8.6.1, v8.x-dev]. - nunomaduro/collision[v8.6.0, ..., v8.x-dev] require php ^8.2.0 -> your php version (8.1.31) does not satisfy that requirement. Problem 4 - Root composer.json requires pestphp/pest-plugin-arch ^v3.0 -> 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 5 - Root composer.json requires laravel/framework ^v11.39 -> satisfiable by laravel/framework[v11.39.0, ..., 11.x-dev]. - laravel/framework[v11.39.0, ..., 11.x-dev] require php ^8.2 -> your php version (8.1.31) does not satisfy that requirement.