Your requirements could not be resolved to an installable set of packages. Problem 1 - symfony/var-dumper[v4.0.0-BETA1, ..., v4.4.8] require php ^7.1.3 -> your php version (8.3.0) does not satisfy that requirement. - symfony/var-dumper[v5.0.0-BETA1, ..., v5.0.0-RC1] require php ^7.2.9 -> your php version (8.3.0) does not satisfy that requirement. - symfony/var-dumper[v5.0.0, ..., v5.1.0-RC1] require php ^7.2.5 -> your php version (8.3.0) does not satisfy that requirement. - Root composer.json requires laravel/framework ^11 -> satisfiable by laravel/framework[11.x-dev (alias of dev-master)]. - psy/psysh[v0.11.12, ..., 0.11.x-dev] require symfony/var-dumper ^6.0 || ^5.0 || ^4.0 || ^3.4 -> satisfiable by symfony/var-dumper[v3.4.0-BETA1, ..., 3.4.x-dev, v4.0.0-BETA1, ..., 4.4.x-dev, v5.0.0-BETA1, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev]. - You can only install one version of a package, so only one of these can be installed: symfony/var-dumper[v3.4.0-BETA1, ..., 3.4.x-dev, v4.0.0-BETA1, ..., 4.4.x-dev, v5.0.0-BETA1, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev, v7.0.0-BETA1, ..., 7.1.x-dev]. - laravel/framework dev-master requires symfony/var-dumper ^7.0 -> satisfiable by symfony/var-dumper[v7.0.0-BETA1, ..., 7.1.x-dev]. - laravel/framework 11.x-dev is an alias of laravel/framework dev-master and thus requires it to be installed too. - Root composer.json requires psy/psysh ^0.11.12 -> satisfiable by psy/psysh[v0.11.12, ..., 0.11.x-dev].