Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest ^2.18.0 -> satisfiable by pestphp/pest[v2.18.0, 2.x-dev]. - pestphp/pest[v2.18.0, ..., 2.x-dev] require nunomaduro/collision ^7.8.1 -> found nunomaduro/collision[v7.8.1, v7.x-dev] but it conflicts with your root composer.json require (^6.0). Problem 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 (^2.18.0). - 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 (^2.18.0). - Root composer.json requires pestphp/pest-plugin-faker ^1.0 -> satisfiable by pestphp/pest-plugin-faker[v1.0.0, 1.x-dev].