Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires orchestra/testbench v10.0.0 -> satisfiable by orchestra/testbench[v10.0.0]. - orchestra/testbench v10.0.0 requires phpunit/phpunit ^11.5.3 -> found phpunit/phpunit[11.5.3, ..., 11.5.12] but it conflicts with your root composer.json require (8.3|8.5|9.3|^9.5|10.5.5).