Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest ^3.8.2 -> satisfiable by pestphp/pest[v3.8.2, 3.x-dev]. - pestphp/pest[v3.8.2, ..., 3.x-dev] require php ^8.2.0 -> your php version (8.1.32) does not satisfy that requirement. Problem 2 - Root composer.json requires pestphp/pest-plugin-faker ^1.0 -> satisfiable by pestphp/pest-plugin-faker[v1.0.0, 1.x-dev]. - pestphp/pest-plugin-faker v1.0.0 requires pestphp/pest ^1.0 -> found pestphp/pest[v1.0.0, ..., 1.x-dev] but it conflicts with your root composer.json require (^3.8.2). - pestphp/pest-plugin-faker 1.x-dev requires pestphp/pest ^1.22.1 -> found pestphp/pest[v1.22.1, ..., 1.x-dev] but it conflicts with your root composer.json require (^3.8.2).