Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires laravel/framework 12.*, found laravel/framework[dev-master, 12.x-dev (alias of dev-master)] but it does not match your minimum-stability. Problem 2 - Root composer.json requires pestphp/pest-plugin-laravel 3.0.0 -> satisfiable by pestphp/pest-plugin-laravel[v3.0.0]. - pestphp/pest-plugin-laravel v3.0.0 requires laravel/framework ^11.22.0 -> found laravel/framework[v11.22.0] but it conflicts with your root composer.json require (12.*). Problem 3 - orchestra/testbench[v9.0.0, ..., v9.0.2] require laravel/framework ^11.0 -> found laravel/framework[v11.0.0, ..., v11.22.0] but it conflicts with your root composer.json require (12.*). - orchestra/testbench[v9.0.3, ..., v9.0.4] require laravel/framework ^11.1 -> found laravel/framework[v11.1.0, ..., v11.22.0] but it conflicts with your root composer.json require (12.*). - orchestra/testbench[v9.1.0, ..., v9.1.2] require laravel/framework ^11.7 -> found laravel/framework[v11.7.0, ..., v11.22.0] but it conflicts with your root composer.json require (12.*). - orchestra/testbench[v9.2.0, ..., v9.4.0] require laravel/framework ^11.11 -> found laravel/framework[v11.11.0, ..., v11.22.0] but it conflicts with your root composer.json require (12.*). - Root composer.json requires orchestra/testbench 9.* -> satisfiable by orchestra/testbench[v9.0.0, ..., v9.4.0].