Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires orchestra/testbench 10.* -> satisfiable by orchestra/testbench[v10.0.0]. - orchestra/testbench v10.0.0 requires laravel/framework ^12.0.1 -> found laravel/framework[v12.0.1, v12.1.0] but it conflicts with your root composer.json require (11.*). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.