Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires larastan/larastan ^1.0.3|^2.4 -> satisfiable by larastan/larastan[1.0.3, 1.0.4, 1.x-dev, 2.4.0, ..., 2.x-dev]. - Root composer.json requires laravel/framework 12.* -> satisfiable by laravel/framework[12.x-dev (alias of dev-master)]. - illuminate/http[v6.0.0, ..., v6.19.1] require php ^7.2 -> your php version (8.2.27) does not satisfy that requirement. - illuminate/http[v6.20.0, ..., 6.x-dev] require illuminate/support ^6.0 -> found illuminate/support[v6.0.0, ..., 6.x-dev] but it conflicts with your root composer.json require (^8.75|^9.0|^10.0|^11.0|^12.0). - illuminate/http[v7.0.0, ..., v7.28.4] require php ^7.2.5 -> your php version (8.2.27) does not satisfy that requirement. - illuminate/http[v7.29.0, ..., 7.x-dev] require illuminate/support ^7.0 -> found illuminate/support[v7.0.0, ..., 7.x-dev] but it conflicts with your root composer.json require (^8.75|^9.0|^10.0|^11.0|^12.0). - illuminate/http[v8.0.0, ..., v8.11.2] require php ^7.3 -> your php version (8.2.27) does not satisfy that requirement. - larastan/larastan[1.0.3, ..., 1.x-dev] require illuminate/http ^6.0 || ^7.0 || ^8.0 || ^9.0 -> satisfiable by illuminate/http[v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev]. - larastan/larastan[2.4.0, ..., v2.6.4] require illuminate/http ^9.47.0 || ^10.0.0 -> satisfiable by illuminate/http[v9.47.0, ..., 9.x-dev, v10.0.0, ..., 10.x-dev]. - larastan/larastan[v2.6.5, ..., v2.7.0] require illuminate/http ^9.52.16 || ^10.28.0 -> satisfiable by illuminate/http[v9.52.16, 9.x-dev, v10.28.0, ..., 10.x-dev]. - larastan/larastan[v2.9.9, ..., 2.x-dev] require illuminate/http ^9.52.16 || ^10.28.0 || ^11.16 -> satisfiable by illuminate/http[v9.52.16, 9.x-dev, v10.28.0, ..., 10.x-dev, v11.16.0, ..., 11.x-dev]. - larastan/larastan[v2.8.0, ..., v2.9.8] require illuminate/http ^9.52.16 || ^10.28.0 || ^11.0 -> satisfiable by illuminate/http[v9.52.16, 9.x-dev, v10.28.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev]. - Only one of these can be installed: illuminate/http[dev-master, v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev, v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev], laravel/framework[dev-master]. laravel/framework replaces illuminate/http and thus cannot coexist with it. - laravel/framework 12.x-dev is an alias of laravel/framework dev-master and thus requires it to be installed too.