Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires rapidez/core ^5.0, found rapidez/core[dev-feature/for-current-store-scope-multi-column, ..., dev-bugfix/preserve-ais-state-on-unmount, 0.1.0, ..., 0.x-dev, 1.0.0, ..., 1.x-dev, 2.0.0, ..., 2.x-dev, 3.0.0, ..., 3.x-dev, 4.0.0, ..., 4.8.0] but it does not match the constraint.