Resolving dependencies... cabal: Could not resolve dependencies: next goal: hums (user goal) rejecting: hums-0.7.0 (constraint from user target requires ==0.6.0) trying: hums-0.6.0 next goal: warp (dependency of hums-0.6.0) rejecting: warp-3.2.9, warp-3.2.8, warp-3.2.7, warp-3.2.6, warp-3.2.5, warp-3.2.3, warp-3.2.2, warp-3.2.1, warp-3.2.0, warp-3.1.12, warp-3.1.11, warp-3.1.10, warp-3.1.9, warp-3.1.8, warp-3.1.7, warp-3.1.6, warp-3.1.5, warp-3.1.4, warp-3.1.3.1, warp-3.1.3, warp-3.1.2, warp-3.1.1, warp-3.1.0, warp-3.0.13.1, warp-3.0.13, warp-3.0.12.1, warp-3.0.12, warp-3.0.11, warp-3.0.10.1, warp-3.0.10, warp-3.0.9.3, warp-3.0.9.2, warp-3.0.9.1, warp-3.0.9, warp-3.0.8, warp-3.0.7, warp-3.0.6, warp-3.0.5.2, warp-3.0.5.1, warp-3.0.5, warp-3.0.4.1, warp-3.0.4, warp-3.0.3, warp-3.0.2.3, warp-3.0.2.2, warp-3.0.2.1, warp-3.0.2, warp-3.0.1.1, warp-3.0.1, warp-3.0.0.8, warp-3.0.0.7, warp-3.0.0.6, warp-3.0.0.5, warp-3.0.0.4, warp-3.0.0.3, warp-3.0.0.2, warp-3.0.0.1, warp-3.0.0 (conflict: hums => warp>=2.0 && <3) rejecting: warp-2.1.5.2 (conflict: base==4.9.0.0/installed-4.9..., warp => base>=3 && <4.8) trying: warp-2.1.5.1 trying: transformers-compat-0.5.1.4:-two trying: transformers-compat-0.5.1.4:+mtl trying: transformers-compat-0.5.1.4:-three next goal: transformers (dependency of hums-0.6.0) rejecting: transformers-0.5.2.0/installed-0.5..., transformers-0.5.2.0, transformers-0.5.1.0, transformers-0.5.0.1, transformers-0.5.0.0, transformers-0.4.3.0, transformers-0.4.2.0, transformers-0.4.1.0 (conflict: warp => transformers>=0.2.2 && <0.4) rejecting: transformers-0.3.0.0 (conflict: transformers-compat-0.5.1.4:three => transformers>=0.2 && <0.3 || >=0.4.1 && <0.6) rejecting: transformers-0.2.2.1, transformers-0.2.1.0, transformers-0.2.0.0, transformers-0.1.4.0, transformers-0.1.3.0, transformers-0.1.1.0, transformers-0.1.0.1, transformers-0.0.1.0, transformers-0.0.0.0 (conflict: hums => transformers>=0.3) rejecting: transformers-0.5.0.2, transformers-0.4.0.0 (conflict: warp => transformers>=0.2.2 && <0.4) rejecting: transformers-0.2.2.0, transformers-0.1.0.0 (conflict: hums => transformers>=0.3) Dependency tree exhaustively searched.