Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires orchestra/testbench ^8.0|^9.0 -> satisfiable by orchestra/testbench[v8.0.0, ..., 8.x-dev, 9.x-dev]. - Conclusion: don't install laravel/framework v9.52.16 (conflict analysis result) - Conclusion: don't install laravel/framework v9.52.15 (conflict analysis result) - Only one of these can be installed: laravel/framework[v9.52.15, v9.52.16, 9.x-dev, v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev], illuminate/support[v9.0.0-beta.1, ..., 9.x-dev]. laravel/framework replaces illuminate/support and thus cannot coexist with it. - Only one of these can be installed: illuminate/view[v9.0.0-beta.1, ..., 9.x-dev, v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev], laravel/framework[v9.52.15, v9.52.16, 9.x-dev, v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev]. laravel/framework replaces illuminate/view and thus cannot coexist with it. - Conclusion: install laravel/framework 10.x-dev (conflict analysis result) - Root composer.json requires illuminate/support ^9 -> satisfiable by illuminate/support[v9.0.0-beta.1, ..., 9.x-dev], laravel/framework[v9.52.15, v9.52.16, 9.x-dev].