Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php >=8.2 but your php version (7.4.33) does not satisfy that requirement. Problem 2 - Root composer.json requires peckphp/peck ^0.2 -> satisfiable by peckphp/peck[v0.2.0]. - peckphp/peck v0.2.0 requires php ^8.2 -> your php version (7.4.33) does not satisfy that requirement. Problem 3 - Root composer.json requires phpbench/phpbench ^1.5 -> satisfiable by phpbench/phpbench[1.5.0, 1.5.1, 1.6.0, 1.6.0.x-dev, 1.6.1]. - phpbench/phpbench[1.5.0, 1.5.1, 1.6.0, 1.6.0.x-dev, 1.6.1] require php ^8.2 -> your php version (7.4.33) does not satisfy that requirement. Problem 4 - Root composer.json requires guanguans/monorepo-builder-worker ^3.1 -> satisfiable by guanguans/monorepo-builder-worker[3.1.0, 3.1.1, 3.1.2, 3.x-dev]. - guanguans/monorepo-builder-worker[3.1.0, 3.1.1, 3.1.2, 3.x-dev] require php >=8.2 -> your php version (7.4.33) does not satisfy that requirement.