Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest-plugin-type-coverage ^2.8 -> satisfiable by pestphp/pest-plugin-type-coverage[v2.8.0, ..., 2.x-dev]. - pestphp/pest[v2.34.2, ..., 2.x-dev] require nunomaduro/collision ^7.10.0|^8.1.1 -> satisfiable by nunomaduro/collision[v8.1.1, v8.x-dev]. - pestphp/pest[v2.34.0, ..., v2.34.1] require nunomaduro/collision ^7.10.0|^8.1.0 -> satisfiable by nunomaduro/collision[v8.1.0, v8.1.1, v8.x-dev]. - nunomaduro/collision[v8.1.0, ..., v8.x-dev] require php ^8.2.0 -> your php version (8.1.29) does not satisfy that requirement. - pestphp/pest-plugin[v2.1.1, ..., 2.x-dev] conflict with pestphp/pest <2.2.3. - Conclusion: install pestphp/pest-plugin v2.1.1 (conflict analysis result) - Root composer.json requires pestphp/pest ^1.21|^2.34 -> satisfiable by pestphp/pest[v1.21.0, ..., 1.x-dev, v2.34.0, ..., 2.x-dev].