Resolving dependencies... cabal: Could not resolve dependencies: trying: hascat-setup-0.2 (user goal) trying: base-4.8.1.0/installed-4f7... (dependency of hascat-setup-0.2) trying: plugins-1.5.4.0 (dependency of hascat-setup-0.2) trying: ghc-7.10.2/installed-a64... (dependency of plugins-1.5.4.0) next goal: haskell98 (dependency of hascat-setup-0.2) rejecting: haskell98-2.0.0.3 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=4.7 && <4.8) rejecting: haskell98-2.0.0.2 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base==4.6.*) rejecting: haskell98-2.0.0.1, 2.0.0.0 (conflict: ghc => directory==1.2.2.0/installed-258..., haskell98 => directory>=1.1 && <1.2) rejecting: haskell98-1.1.0.1, 1.1.0.0, 1.0.1.1 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6) rejecting: haskell98-1.0.1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.6) rejecting: haskell98-1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.3) Dependency tree exhaustively searched.