Resolving dependencies... cabal: Could not resolve dependencies: next goal: synthesizer-core (user goal) rejecting: synthesizer-core-0.7.1, 0.7.0.2 (global constraint requires ==0.7.0.1) trying: synthesizer-core-0.7.0.1 next goal: process (dependency of synthesizer-core-0.7.0.1) rejecting: process-1.2.3.0/installed-f02... (conflict: process => deepseq==1.4.1.1/installed-8fb..., synthesizer-core => deepseq>=1.1 && <1.4) rejecting: process-1.4.1.0, 1.4.0.0, 1.3.0.0 (conflict: synthesizer-core => process>=1.0 && <1.3) trying: process-1.2.3.0 trying: unix-2.7.1.0/installed-643... (dependency of process-1.2.3.0) next goal: time (dependency of unix-2.7.1.0/installed-643...) rejecting: time-1.5.0.1/installed-c20... (conflict: time => deepseq==1.4.1.1/installed-8fb..., synthesizer-core => deepseq>=1.1 && <1.4) rejecting: time-1.5.0.1, 1.5, 1.4.2, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4, 1.3, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2, 1.1.4, 1.1.3, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2.0, 1.0 (conflict: unix => time==1.5.0.1/installed-c20...) Dependency tree exhaustively searched.