Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/var-dumper ^8.0 -> satisfiable by symfony/var-dumper[v8.0.0]. - symfony/var-dumper v8.0.0 requires php >=8.4 -> your php version (8.3.28) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/filesystem ^8.0 -> satisfiable by symfony/filesystem[v8.0.0, v8.0.1]. - symfony/filesystem[v8.0.0, ..., v8.0.1] require php >=8.4 -> your php version (8.3.28) does not satisfy that requirement. Problem 3 - Root composer.json requires symfony/process ^8.0 -> satisfiable by symfony/process[v8.0.0]. - symfony/process v8.0.0 requires php >=8.4 -> your php version (8.3.28) does not satisfy that requirement.