Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires lychee-org/phpstan-lychee dev-road-to-phpstan2.0 -> satisfiable by lychee-org/phpstan-lychee[dev-road-to-phpstan2.0]. - lychee-org/phpstan-lychee dev-road-to-phpstan2.0 requires phpstan/phpstan ^2.0 -> found phpstan/phpstan[2.0.0, 2.0.1, 2.0.x-dev] but these were not loaded, likely because it conflicts with another require.