Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires yiisoft/db-pgsql dev-master as, found yiisoft/db-pgsql[dev-ease-local-testing, dev-old-master, dev-test-environment, dev-enhacement-builder-columns, dev-master, dev-logger, 1.0.0, 1.1.0, 1.2.0, 1.3.0] but it does not match the constraint.