Your requirements could not be resolved to an installable set of packages. Problem 1 - illuminate/contracts 11.x-dev is an alias of illuminate/contracts dev-master and thus requires it to be installed too. - Conclusion: don't install illuminate/contracts dev-master (conflict analysis result) - laravel/framework[v7.0.0, ..., v7.28.4] require php ^7.2.5 -> your php version (8.2.15) does not satisfy that requirement. - laravel/framework[v8.0.0, ..., v8.11.2] require php ^7.3 -> your php version (8.2.15) does not satisfy that requirement. - 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 -> satisfiable by laravel/framework[v7.30.6, 7.x-dev, v8.83.27, 8.x-dev, v9.47.0, ..., 9.x-dev, v10.0.0, ..., 10.x-dev]. - pestphp/pest-plugin-laravel v1.3.0 requires laravel/framework ^7.30.6 || ^8.83.23 || ^9.30.1 -> satisfiable by laravel/framework[v7.30.6, 7.x-dev, v8.83.23, ..., 8.x-dev, v9.30.1, ..., 9.x-dev]. - pestphp/pest-plugin-laravel v1.2.0 requires laravel/framework ^7.0 || ^8.0 || ^9.0 -> satisfiable by laravel/framework[v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev]. - pestphp/pest-plugin-laravel v1.1.0 requires laravel/framework ^7.0 || ^8.0 -> satisfiable by laravel/framework[v7.0.0, ..., 7.x-dev, v8.0.0, ..., 8.x-dev]. - Only one of these can be installed: illuminate/view[dev-master, v9.0.0-beta.1, ..., 9.x-dev, v10.0.0, ..., 10.x-dev], laravel/framework[dev-master, 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]. laravel/framework replaces illuminate/view and thus cannot coexist with it. - laravel/framework 11.x-dev is an alias of laravel/framework dev-master and thus requires it to be installed too. - Root composer.json requires illuminate/contracts 11.* -> satisfiable by illuminate/contracts[11.x-dev (alias of dev-master)], laravel/framework[11.x-dev (alias of dev-master)]. - Root composer.json requires pestphp/pest-plugin-laravel ^1.1 -> satisfiable by pestphp/pest-plugin-laravel[v1.1.0, ..., 1.x-dev].