Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - sebastian/diff is locked to version 7.0.0 and an update of this package was not requested. - sebastian/diff 7.0.0 requires php >=8.3 -> your php version (8.2.27) does not satisfy that requirement. Problem 2 - vimeo/psalm is locked to version 6.8.6 and an update of this package was not requested. - sebastian/diff 7.0.0 requires php >=8.3 -> your php version (8.2.27) does not satisfy that requirement. - vimeo/psalm 6.8.6 requires sebastian/diff ^4.0 || ^5.0 || ^6.0 || ^7.0 -> satisfiable by sebastian/diff[7.0.0].