Resolving dependencies... cabal: Could not resolve dependencies: trying: pacman-memcache-0.1.0.3 (user goal) trying: base-4.7.0.1/installed-e4b... (dependency of pacman-memcache-0.1.0.3) next goal: deepseq (dependency of pacman-memcache-0.1.0.3) rejecting: deepseq-1.3.0.2/installed-733..., 1.4.1.1, 1.4.1.0, 1.4.0.0, 1.3.0.2, 1.3.0.1, 1.3.0.0, 1.2.0.1, 1.2.0.0 (conflict: pacman-memcache => deepseq<1.2) trying: deepseq-1.1.0.2 next goal: array (dependency of deepseq-1.1.0.2) rejecting: array-0.5.0.0/installed-98a..., 0.5.1.0, 0.5.0.0, 0.4.0.1, 0.4.0.0 (conflict: deepseq => array>=0.1 && <0.4) rejecting: array-0.3.0.3 (conflict: base==4.7.0.1/installed-e4b..., array => base>=4.2 && <4.5) rejecting: array-0.3.0.2, 0.3.0.1 (conflict: base==4.7.0.1/installed-e4b..., array => base>=4.2 && <4.4) rejecting: array-0.3.0.0 (conflict: base==4.7.0.1/installed-e4b..., array => base>=3 && <4.4) rejecting: array-0.2.0.0, 0.1.0.0 (conflict: base==4.7.0.1/installed-e4b..., array => base<4.3) Dependency tree exhaustively searched.