Resolving dependencies... cabal: Could not resolve dependencies: next goal: htsn (user goal) rejecting: htsn-0.1.1, 0.1.0, 0.0.11, 0.0.10, 0.0.9, 0.0.8, 0.0.7, 0.0.6, 0.0.5, 0.0.4 (global constraint requires ==0.0.3) trying: htsn-0.0.3 trying: base-4.7.0.1/installed-e4b... (dependency of htsn-0.0.3) next goal: unix (dependency of htsn-0.0.3) rejecting: unix-2.7.0.1/installed-0d8..., 2.7.1.0, 2.7.0.1, 2.7.0.0 (conflict: htsn => unix==2.6.*) rejecting: unix-2.6.0.1, 2.6.0.0 (conflict: base==4.7.0.1/installed-e4b..., unix => base>=4.5 && <4.7) rejecting: unix-2.5.1.1, 2.5.1.0, 2.5.0.0, 2.4.2.0, 2.4.1.0, 2.4.0.2, 2.4.0.1, 2.4.0.0, 2.3.2.0, 2.3.1.0, 2.3.0.0, 2.2.0.0, 2.0 (conflict: htsn => unix==2.6.*) Dependency tree exhaustively searched.