Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest ^3.0 -> satisfiable by pestphp/pest[v3.0.0, 3.x-dev]. - pestphp/pest[v3.0.0, ..., 3.x-dev] require phpunit/phpunit ^11.3.4 -> found phpunit/phpunit[dev-main, 11.3.4, 11.3.x-dev, 11.4.x-dev (alias of dev-main)] but it conflicts with your root composer.json require (^10.0). Problem 2 - pestphp/pest[v3.0.0, ..., 3.x-dev] require phpunit/phpunit ^11.3.4 -> found phpunit/phpunit[dev-main, 11.3.4, 11.3.x-dev, 11.4.x-dev (alias of dev-main)] but it conflicts with your root composer.json require (^10.0). - pestphp/pest-plugin-livewire[v3.0.0, ..., 3.x-dev] require pestphp/pest ^3.0.0 -> satisfiable by pestphp/pest[v3.0.0, 3.x-dev]. - Root composer.json requires pestphp/pest-plugin-livewire ^3.0 -> satisfiable by pestphp/pest-plugin-livewire[v3.0.0, 3.x-dev].