Resolving dependencies... cabal: Could not resolve dependencies: trying: transformers-0.5.2.0/installed-0.5... (dependency of primitive-0.6.1.0) trying: random-fu-0.2.6.2 (dependency of wordpass-1.0.0.6) next goal: rvar (dependency of random-fu-0.2.6.2) rejecting: rvar-0.2.0.2 (conflict: transformers==0.5.2.0/installed-0.5..., rvar => transformers>=0.2 && <0.5) rejecting: rvar-0.2.0.1 (conflict: transformers==0.5.2.0/installed-0.5..., rvar => transformers>=0.2 && <0.4) rejecting: rvar-0.2 (conflict: transformers==0.5.2.0/installed-0.5..., rvar => transformers==0.2.*) Dependency tree exhaustively searched.