Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires orchestra/testbench 10.* -> satisfiable by orchestra/testbench[10.x-dev]. - orchestra/testbench 10.x-dev requires phpunit/phpunit ^11.5.3 -> found phpunit/phpunit[11.5.3, ..., 11.5.x-dev] but it conflicts with your root composer.json require (^9.4|^10.5). Problem 2 - Root composer.json requires pestphp/pest-plugin-laravel ^1.3|^2.3 -> satisfiable by pestphp/pest-plugin-laravel[v1.3.0, v1.4.0, 1.x-dev, v2.3.0, v2.4.0, 2.x-dev]. - pestphp/pest-plugin-laravel v1.3.0 requires laravel/framework ^7.30.6 || ^8.83.23 || ^9.30.1 -> found laravel/framework[v7.30.6, v7.30.7, 7.x-dev, v8.83.23, ..., 8.x-dev, v9.30.1, ..., 9.x-dev] but it conflicts with your root composer.json require (12.*). - pestphp/pest-plugin-laravel[v1.4.0, ..., 1.x-dev] require laravel/framework ^7.30.6 || ^8.83.27 || ^9.47.0 || ^10.0.0 -> found laravel/framework[v7.30.6, v7.30.7, 7.x-dev, v8.83.27, v8.83.28, v8.83.29, 8.x-dev, v9.47.0, ..., 9.x-dev, v10.0.0, ..., 10.x-dev] but it conflicts with your root composer.json require (12.*). - pestphp/pest-plugin-laravel v2.3.0 requires laravel/framework ^10.44.0|^11.0 -> found laravel/framework[v10.44.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev] but it conflicts with your root composer.json require (12.*). - pestphp/pest-plugin-laravel[v2.4.0, ..., 2.x-dev] require laravel/framework ^10.48.9|^11.5.0 -> found laravel/framework[v10.48.9, ..., 10.x-dev, v11.5.0, ..., 11.x-dev] but it conflicts with your root composer.json require (12.*).