Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires orchestra/testbench-core ^11.0.0 -> satisfiable by orchestra/testbench-core[11.x-dev]. - orchestra/testbench-core 11.x-dev requires php ^8.3 -> your php version (8.2.27) does not satisfy that requirement. Problem 2 - Root composer.json requires laravel/framework ^13.0.0 -> satisfiable by laravel/framework[13.0.x-dev (alias of dev-master)]. - laravel/framework dev-master requires php ^8.3 -> your php version (8.2.27) does not satisfy that requirement. - laravel/framework 13.0.x-dev is an alias of laravel/framework dev-master and thus requires it to be installed too.