Resolving dependencies... cabal: Could not resolve dependencies: next goal: synthesizer-core (user goal) rejecting: synthesizer-core-0.8.0.2, synthesizer-core-0.8.0.1, synthesizer-core-0.8, synthesizer-core-0.7.1, synthesizer-core-0.7.0.2, synthesizer-core-0.7.0.1 (constraint from user target requires ==0.7) trying: synthesizer-core-0.7 trying: unix-2.7.2.0/installed-2.7... (dependency of process-1.1.0.1) next goal: time (dependency of unix-2.7.2.0/installed-2.7...) rejecting: time-1.6.0.1/installed-1.6... (conflict: time => deepseq==1.4.2.0/installed-1.4..., synthesizer-core => deepseq>=1.1 && <1.4) rejecting: time-1.7, time-1.6.0.1, time-1.6, time-1.5.0.1, time-1.5, time-1.4.2, time-1.4.1, time-1.4.0.2, time-1.4.0.1, time-1.4, time-1.3, time-1.2.0.5, time-1.2.0.4, time-1.2.0.3, time-1.2.0.2, time-1.2.0.1, time-1.2, time-1.1.4, time-1.1.3, time-1.1.2.4, time-1.1.2.3, time-1.1.2.2, time-1.1.2.1, time-1.1.2.0, time-1.0 (conflict: unix => time==1.6.0.1/installed-1.6...) Dependency tree exhaustively searched.