Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - symfony/finder is locked to version v7.2.0 and an update of this package was not requested. - symfony/finder v7.2.0 requires php >=8.2 -> your php version (8.1.31) does not satisfy that requirement. Problem 2 - mglaman/phpstan-drupal is locked to version 1.2.10 and an update of this package was not requested. - mglaman/phpstan-drupal 1.2.10 requires symfony/finder ^4.2 || ^5.0 || ^6.0 || ^7.0 -> satisfiable by symfony/finder[v7.2.0]. - symfony/finder v7.2.0 requires php >=8.2 -> your php version (8.1.31) does not satisfy that requirement.