Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires vimeo/psalm ^5.26.1 || ^6.8.9 -> satisfiable by vimeo/psalm[5.26.1, 6.8.9, ..., 6.13.1]. - vimeo/psalm 5.26.1 requires php ^7.4 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 -> your php version (8.5.0) does not satisfy that requirement. - vimeo/psalm[6.8.9, ..., 6.13.1] require php ~8.1.31 || ~8.2.27 || ~8.3.16 || ~8.4.3 -> your php version (8.5.0) does not satisfy that requirement.