Resolving dependencies... cabal: Could not resolve dependencies: next goal: htsn (user goal) rejecting: htsn-0.1.1, htsn-0.1.0, htsn-0.0.11, htsn-0.0.10, htsn-0.0.9, htsn-0.0.8, htsn-0.0.7, htsn-0.0.6, htsn-0.0.5 (constraint from user target requires ==0.0.4) trying: htsn-0.0.4 trying: base-4.9.0.0/installed-4.9... (dependency of htsn-0.0.4) next goal: unix (dependency of htsn-0.0.4) rejecting: unix-2.7.2.0/installed-2.7..., unix-2.7.2.1, unix-2.7.2.0, unix-2.7.1.0, unix-2.7.0.1, unix-2.7.0.0 (conflict: htsn => unix==2.6.*) rejecting: unix-2.6.0.1, unix-2.6.0.0 (conflict: base==4.9.0.0/installed-4.9..., unix => base>=4.5 && <4.7) rejecting: unix-2.5.1.1, unix-2.5.1.0, unix-2.5.0.0, unix-2.4.2.0, unix-2.4.1.0, unix-2.4.0.2, unix-2.4.0.1, unix-2.4.0.0, unix-2.3.2.0, unix-2.3.1.0, unix-2.3.0.0, unix-2.2.0.0, unix-2.0 (conflict: htsn => unix==2.6.*) Dependency tree exhaustively searched.