Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires guanguans/ai-commit ^1.7 -> satisfiable by guanguans/ai-commit[1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.8.0, 1.8.1, 1.8.2]. - guanguans/ai-commit[1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.8.0, 1.8.1, 1.8.2] require php >=7.3 -> your php version (7.2.34) does not satisfy that requirement.