Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires datana-gmbh/datapool-api ^3.16 -> satisfiable by datana-gmbh/datapool-api[3.16.0]. - datana-gmbh/datapool-api 3.16.0 requires php >=8.1 -> your php version (7.4.33) does not satisfy that requirement.