Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires rapidez/checkout-theme ^3.0, found rapidez/checkout-theme[dev-feature/out-of-stock-cart-v2, dev-feature/fix-images, dev-feature/visual-optimizations, dev-feature/v3-colors-and-tweaks, dev-Jade-GG-patch-1, dev-Jade-GG-patch-2, dev-master, 1.0.0, ..., 1.x-dev, 2.0.0, ..., 2.x-dev] but it does not match the constraint.

Process completed with exit code 2.