Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires illuminate/config ^8.12|^9.0|^10.0|^11.0|^12.0 -> satisfiable by illuminate/config[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, v12.0.0, ..., 12.x-dev]. - Root composer.json requires laravel/framework ^13.0 -> satisfiable by laravel/framework[13.0.x-dev (alias of dev-master), 13.x-dev]. - Conclusion: don't install illuminate/config v8.12.0 (conflict analysis result) - Conclusion: don't install illuminate/config v9.0.0 (conflict analysis result) - Conclusion: don't install illuminate/config v10.0.0 (conflict analysis result) - Conclusion: don't install illuminate/config v11.0.0 (conflict analysis result) - Only one of these can be installed: laravel/framework[dev-master, 13.x-dev], illuminate/config[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, v12.0.0, ..., 12.x-dev]. laravel/framework replaces illuminate/config and thus cannot coexist with it. - laravel/framework 13.0.x-dev is an alias of laravel/framework dev-master and thus requires it to be installed too.