Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires ray/di 2.0-dev as 2.17.3 (exact version match), found ray/di[dev-optional-setter-injection, dev-visitor, dev-accept, 1.0.0, ..., 1.x-dev, 2.0.0-alpha, ..., 2.x-dev] but it does not match the constraint.