Resolving dependencies...
cabal: Could not resolve dependencies:
trying: store-0.4.0 (user goal)
next goal: store-core (dependency of store-0.4.0)
rejecting: store-core-0.3, store-core-0.2.0.2, store-core-0.2.0.1,
store-core-0.2.0.0 (conflict: store => store-core>=0.4 && <0.5)
Dependency tree exhaustively searched.