Resolving dependencies... cabal: Could not resolve dependencies: next goal: log-domain (user goal) rejecting: log-domain-0.10.1, 0.10.0.1, 0.10, 0.9.3, 0.9.2.1, 0.9.2, 0.9.1, 0.9, 0.8.1, 0.8, 0.7.2, 0.7.1, 0.6, 0.5.0.1, 0.5 (global constraint requires ==0.4) trying: log-domain-0.4 trying: vector-0.10.12.3 (dependency of log-domain-0.4) trying: primitive-0.6 (dependency of vector-0.10.12.3) trying: transformers-0.3.0.0/installed-16a... (dependency of primitive-0.6) next goal: semigroupoids (dependency of log-domain-0.4) rejecting: semigroupoids-5.0.0.2, 5.0.0.1, 5, 4.3, 4.2, 4.0.4, 4.0.3, 4.0.2.1, 4.0.2, 4.0.1, 4.0 (conflict: log-domain => semigroupoids>=3.0.2 && <4) trying: semigroupoids-3.1 next goal: contravariant (dependency of semigroupoids-3.1) rejecting: contravariant-1.3.1.1, 1.3.1, 1.3, 1.2.2.1, 1.2.2, 1.2.1, 1.2.0.1, 1.2, 1.1, 1.0 (conflict: semigroupoids => contravariant>=0.2.0.1 && <1) trying: contravariant-0.6.1.1 trying: transformers-compat-0.4.0.4 (dependency of contravariant-0.6.1.1) trying: transformers-compat-0.4.0.4:-two rejecting: transformers-compat-0.4.0.4:-three (conflict: transformers==0.3.0.0/installed-16a..., transformers-compat-0.4.0.4:three => transformers>=0.4.1 && <0.5) rejecting: transformers-compat-0.4.0.4:+three (manual flag can only be changed explicitly) Backjump limit reached (change with --max-backjumps).