Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest 2.0 (exact version match: 2.0, 2.0.0 or 2.0.0.0), found pestphp/pest[v0.1.0, ..., v0.3.19, v1.0.0, ..., 1.x-dev, v2.0.1, ..., 2.x-dev, v3.0.0, ..., 3.x-dev, v4.0.0, ..., 4.x-dev] but it does not match the constraint. Problem 2 - Root composer.json requires pestphp/pest-plugin-laravel 3.0 -> satisfiable by pestphp/pest-plugin-laravel[v3.0.0]. - pestphp/pest-plugin-laravel v3.0.0 requires pestphp/pest ^3.0.0 -> found pestphp/pest[v3.0.0, ..., 3.x-dev] but it conflicts with your root composer.json require (2.0).