Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/console ^7 -> satisfiable by symfony/console[v7.0.0, ..., v7.0.4]. - symfony/console[v7.0.0, ..., v7.0.4] require php >=8.2 -> your php version (8.1.27) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/filesystem ^7 -> satisfiable by symfony/filesystem[v7.0.0, v7.0.3]. - symfony/filesystem[v7.0.0, ..., v7.0.3] require php >=8.2 -> your php version (8.1.27) does not satisfy that requirement. Problem 3 - Root composer.json requires symfony/finder ^7 -> satisfiable by symfony/finder[v7.0.0]. - symfony/finder v7.0.0 requires php >=8.2 -> your php version (8.1.27) does not satisfy that requirement. Problem 4 - symfony/filesystem[v7.0.0, ..., v7.0.3] require php >=8.2 -> your php version (8.1.27) does not satisfy that requirement. - phpmd/phpmd 2.15.0 requires pdepend/pdepend ^2.16.1 -> satisfiable by pdepend/pdepend[2.16.1, 2.16.2]. - pdepend/pdepend[2.16.1, ..., 2.16.2] require symfony/filesystem ^2.3.0|^3|^4|^5|^6.0|^7.0 -> satisfiable by symfony/filesystem[v7.0.0, v7.0.3]. - Root composer.json requires phpmd/phpmd ^2.15 -> satisfiable by phpmd/phpmd[2.15.0].