Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - symfony/string is locked to version 8.0.x-dev and an update of this package was not requested. - symfony/string 8.0.x-dev requires php >=8.4 -> your php version (8.3.6) does not satisfy that requirement. Problem 2 - symfony/console is locked to version 7.4.x-dev and an update of this package was not requested. - symfony/console 7.4.x-dev requires symfony/string ^7.2|^8.0 -> satisfiable by symfony/string[8.0.x-dev]. - symfony/string 8.0.x-dev requires php >=8.4 -> your php version (8.3.6) does not satisfy that requirement.