Your requirements could not be resolved to an installable set of packages. Problem 1 - armin/editorconfig-cli[1.5.0, ..., 1.6.0] require php ^7.3 | ^8.0 -> your php version (7.1.33) does not satisfy that requirement. - armin/editorconfig-cli[1.6.1, ..., 1.8.1] require php ^7.4 || ^8.0 -> your php version (7.1.33) does not satisfy that requirement. - Root composer.json requires armin/editorconfig-cli ^1.5 -> satisfiable by armin/editorconfig-cli[1.5.0, ..., 1.8.1].