Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires laravel/framework 12.* -> satisfiable by laravel/framework[12.x-dev (alias of dev-master)]. - Root composer.json requires livewire/livewire ^2.10|^3.0 -> satisfiable by livewire/livewire[v2.10.0, ..., 2.x-dev, v3.0.0-beta.1, ..., v3.5.19]. - illuminate/validation[v8.0.0, ..., v8.11.2] require php ^7.3 -> your php version (8.3.16) does not satisfy that requirement. - livewire/livewire[v2.10.0, ..., v2.10.8] require illuminate/validation ^7.0|^8.0|^9.0 -> satisfiable by illuminate/validation[v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev]. - livewire/livewire[v2.11.0, ..., 2.x-dev] require illuminate/validation ^7.0|^8.0|^9.0|^10.0 -> satisfiable by illuminate/validation[v8.0.0, ..., 8.x-dev, v9.0.0-beta.1, ..., 9.x-dev, v10.0.0, ..., 10.x-dev]. - livewire/livewire[v3.0.0-beta.1, ..., v3.0.0-beta.6] require illuminate/validation ^9.0|^10.0|^11.0 -> satisfiable by illuminate/validation[v9.0.0-beta.1, ..., 9.x-dev, v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev]. - livewire/livewire[v3.0.0-beta.7, ..., v3.5.19] require illuminate/validation ^10.0|^11.0 -> satisfiable by illuminate/validation[v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev]. - livewire/livewire[v3.0.2, ..., v3.3.4] require illuminate/validation ^10.0 -> satisfiable by illuminate/validation[v10.0.0, ..., 10.x-dev]. - Only one of these can be installed: laravel/framework[dev-master], illuminate/validation[dev-master, 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 replaces illuminate/validation 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.