Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ~8.3.12 but your php version (8.3.9) does not satisfy that requirement. Problem 2 - Root composer.json requires roave/no-leaks ^1.5.0 -> satisfiable by roave/no-leaks[1.5.0]. - roave/no-leaks 1.5.0 requires php ~8.1.0 || ~8.2.0 -> your php version (8.3.9) does not satisfy that requirement.