Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires qossmic/deptrac ^2.0 -> satisfiable by qossmic/deptrac[2.0.0, ..., 2.0.4]. - qossmic/deptrac[2.0.0, ..., 2.0.4] require php ^8.1 -> your php version (8.0.30) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/http-client ^6.2 -> satisfiable by symfony/http-client[v6.2.0, ..., v6.4.18]. - symfony/http-client[v6.2.0, ..., v6.4.18] require php >=8.1 -> your php version (8.0.30) does not satisfy that requirement. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.