Resolving dependencies... cabal: Could not resolve dependencies: next goal: hLLVM (user goal) rejecting: hLLVM-0.5.0.1 (constraint from user target requires ==0.5.0.0) trying: hLLVM-0.5.0.0 next goal: hooplext (dependency of hLLVM-0.5.0.0) Dependency tree exhaustively searched.