Resolving dependencies... cabal: Could not resolve dependencies: next goal: hierarchical-clustering-diagrams (user goal) rejecting: hierarchical-clustering-diagrams-0.3.2, 0.3.1 (global constraint requires ==0.3) trying: hierarchical-clustering-diagrams-0.3 trying: base-4.8.1.0/installed-4f7... (dependency of hierarchical-clustering-diagrams-0.3) next goal: diagrams-lib (dependency of hierarchical-clustering-diagrams-0.3) rejecting: diagrams-lib-1.3.0.7, 1.3.0.6, 1.3.0.5, 1.3.0.4, 1.3.0.3, 1.3.0.2, 1.3.0.1, 1.3, 1.2.0.9, 1.2.0.8, 1.2.0.7, 1.2.0.6, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2, 1.1.0.7, 1.1.0.6, 1.1.0.4, 1.1.0.3, 1.1.0.2, 1.1.0.1, 1.1, 1.0.1, 1.0.0.1, 1.0, 0.7.1.1, 0.7.1, 0.7, 0.6.0.3, 0.6.0.2, 0.6.0.1, 0.6 (conflict: hierarchical-clustering-diagrams => diagrams-lib==0.5.*) rejecting: diagrams-lib-0.5.0.1, 0.5 (conflict: base==4.8.1.0/installed-4f7..., diagrams-lib => base>=4.2 && <4.6) rejecting: diagrams-lib-0.4.0.1, 0.4, 0.3, 0.2, 0.1.1, 0.1 (conflict: hierarchical-clustering-diagrams => diagrams-lib==0.5.*) Dependency tree exhaustively searched.