Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires illuminate/auth ^8.12|^9.0|^10.0|^11.0 -> satisfiable by illuminate/auth[v8.12.0, ..., 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[v8.12.0, ..., 8.x-dev]. - Root composer.json requires larastan/larastan ^2.9 -> satisfiable by larastan/larastan[v2.9.0, ..., 2.x-dev]. - Root composer.json requires laravel/framework ^8.12 -> satisfiable by laravel/framework[v8.12.0, ..., 8.x-dev]. - illuminate/auth[v10.0.0, ..., 10.x-dev] require php ^8.1 -> your php version (8.0.30) does not satisfy that requirement. - illuminate/auth[v11.0.0, ..., 11.x-dev] require php ^8.2 -> your php version (8.0.30) does not satisfy that requirement. - Conclusion: don't install illuminate/auth v8.83.27 (conflict analysis result) - Conclusion: don't install illuminate/auth v9.50.2 (conflict analysis result) - Conclusion: don't install illuminate/auth v9.52.16 (conflict analysis result) - Conclusion: install illuminate/pipeline v9.52.16 (conflict analysis result) - Only one of these can be installed: illuminate/pipeline[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[v8.12.0, ..., 8.x-dev]. laravel/framework replaces illuminate/pipeline and thus cannot coexist with it.