Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/mailer ^7.0 -> satisfiable by symfony/mailer[v7.0.0, v7.0.2]. - symfony/mailer[v7.0.0, ..., v7.0.2] require php >=8.2 -> your php version (8.1.27) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/mime ^7.0 -> satisfiable by symfony/mime[v7.0.0]. - symfony/mime v7.0.0 requires php >=8.2 -> your php version (8.1.27) does not satisfy that requirement.