Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires kitodo/presentation ^5.0|dev-master -> satisfiable by kitodo/presentation[v5.0.0-rc1, ..., 5.1.x-dev]. - kitodo/presentation[v5.0.0-rc1, ..., v5.0.0-rc2] require php ^7.4 -> your php version (8.4.1) does not satisfy that requirement. - kitodo/presentation[v5.0.0, ..., 5.1.x-dev] require php 7.4 - 8.3 -> your php version (8.4.1) does not satisfy that requirement.