Your requirements could not be resolved to an installable set of packages. Problem 1 - 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]. - orchestra/testbench[10.0.x-dev, ..., 10.x-dev] require phpunit/phpunit ^11.5.3 -> found phpunit/phpunit[11.5.3, ..., 11.5.x-dev] but it conflicts with your root composer.json require (^8.4.0). - orchestra/testbench[v8.0.0, ..., v8.3.1] require phpunit/phpunit ^9.6 || ^10.0.7 -> found phpunit/phpunit[9.6.0, ..., 9.6.x-dev, 10.0.7, ..., 10.5.x-dev] but it conflicts with your root composer.json require (^8.4.0). - orchestra/testbench[v8.4.0, ..., 8.x-dev] require phpunit/phpunit ^9.6 || ^10.1 -> found phpunit/phpunit[9.6.0, ..., 9.6.x-dev, 10.1.0, ..., 10.5.x-dev] but it conflicts with your root composer.json require (^8.4.0). - orchestra/testbench[v9.0.0, ..., v9.5.2] require phpunit/phpunit ^10.5 || ^11.0.1 -> found phpunit/phpunit[10.5.0, ..., 10.5.x-dev, 11.0.1, ..., 11.5.x-dev] but it conflicts with your root composer.json require (^8.4.0). - orchestra/testbench[v9.6.0, ..., 9.x-dev] require phpunit/phpunit ^10.5.35 || ^11.3.6 -> found phpunit/phpunit[10.5.35, ..., 10.5.x-dev, 11.3.6, ..., 11.5.x-dev] but it conflicts with your root composer.json require (^8.4.0).