Resolving dependencies... cabal: Could not resolve dependencies: next goal: haskore-synthesizer (user goal) rejecting: haskore-synthesizer-0.0.3.2, 0.0.3.1 (global constraint requires ==0.0.3) trying: haskore-synthesizer-0.0.3 trying: base-4.8.1.0/installed-4f7... (dependency of haskore-synthesizer-0.0.3) next goal: event-list (dependency of haskore-synthesizer-0.0.3) rejecting: event-list-0.1.1.2, 0.1.1.1, 0.1.1, 0.1.0.2, 0.1.0.1, 0.1 (conflict: haskore-synthesizer => event-list>=0.0.6 && <0.1) rejecting: event-list-0.0.11.1, 0.0.11 (conflict: transformers==0.4.2.0/installed-21d..., event-list => transformers>=0.1 && <0.3) rejecting: event-list-0.0.10.1, 0.0.10, 0.0.9.1, 0.0.9, 0.0.8 (conflict: transformers==0.4.2.0/installed-21d..., event-list => transformers>=0.0.1 && <0.2) trying: event-list-0.0.7 next goal: mtl (dependency of event-list-0.0.7) rejecting: mtl-2.2.1, 2.2.0.1, 2.2, 2.1.3.1, 2.1.2, 2.1.1, 2.1, 2.0.1.1, 2.0.1.0, 2.0.0.0 (conflict: event-list => mtl>=1 && <2) rejecting: mtl-1.1.1.1, 1.1.1.0 (conflict: base==4.8.1.0/installed-4f7..., mtl => base<4.6) rejecting: mtl-1.1.0.2, 1.1.0.1, 1.1.0.0, 1.0 (conflict: base==4.8.1.0/installed-4f7..., mtl => base<4.3) Backjump limit reached (change with --max-backjumps).