Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires illuminate/database ^12.0 -> satisfiable by illuminate/database[12.x-dev (alias of dev-master)], laravel/framework[12.x-dev (alias of dev-master)]. - Root composer.json requires orchestra/testbench ^8 || ^9 || ^10.0 -> satisfiable by orchestra/testbench[v8.0.0, ..., 8.x-dev, v9.0.0, ..., 9.x-dev, 10.0.x-dev, 10.x-dev]. - Root composer.json requires rdx/laravelcollective-html ^6 -> satisfiable by rdx/laravelcollective-html[v6.0, ..., 6.x-dev]. - illuminate/http[v6.0.0, ..., v6.0.4] require php ^7.2 -> your php version (8.3.17) does not satisfy that requirement. - illuminate/view[v6.0.0, ..., v6.19.1] require php ^7.2 -> your php version (8.3.17) does not satisfy that requirement. - rdx/laravelcollective-html[v6.0, ..., v6.0.2] require illuminate/http 6.0.* -> satisfiable by illuminate/http[v6.0.0, ..., v6.0.4]. - rdx/laravelcollective-html v6.0.3 requires illuminate/view ^6.0 -> satisfiable by illuminate/view[v6.0.0, ..., 6.x-dev]. - rdx/laravelcollective-html 6.x-dev requires illuminate/view ^11.0 -> satisfiable by illuminate/view[v11.0.0, ..., 11.x-dev], laravel/framework[v11.0.0, ..., 11.x-dev]. - Conclusion: don't install laravel/framework dev-master (conflict analysis result) - Conclusion: don't install illuminate/view v6.20.44 (conflict analysis result) - Conclusion: don't install illuminate/database dev-master (conflict analysis result) - Conclusion: don't install illuminate/database 12.x-dev (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html v6.1.2 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html v6.2.1 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html v6.3.0 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html v6.4.1 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html v6.5 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html v6.6 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html 6.7 (conflict analysis result) - Conclusion: don't install rdx/laravelcollective-html 6.8 (conflict analysis result) - illuminate/database 12.x-dev is an alias of illuminate/database dev-master and thus requires it to be installed too. - Only one of these can be installed: illuminate/view[dev-master, v6.0.0, ..., 6.x-dev, 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[dev-master, v9.52.9, ..., 9.x-dev, v10.0.0, ..., 10.x-dev, v11.0.0, ..., 11.x-dev, 12.x-dev]. laravel/framework replaces illuminate/view 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. - Only one of these can be installed: laravel/framework[dev-master, v11.0.0, ..., 11.x-dev, 12.x-dev], illuminate/support[dev-master, v11.0.0, ..., 11.x-dev, 12.x-dev]. They all replace spatie/once and thus cannot coexist.