Resolving dependencies... cabal: Could not resolve dependencies: next goal: hums (user goal) rejecting: hums-0.7.0, 0.6.0 (global constraint requires ==0.5.0) trying: hums-0.5.0 trying: base-4.7.0.1/installed-e4b... (dependency of hums-0.5.0) next goal: case-insensitive (dependency of hums-0.5.0) rejecting: case-insensitive-1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2.0.0, 1.1.0.3, 1.1.0.2, 1.1.0.1, 1.1, 1.0.0.2, 1.0.0.1, 1.0 (conflict: hums => case-insensitive>=0.4 && <0.5) rejecting: case-insensitive-0.4.0.4, 0.4.0.3, 0.4.0.2 (conflict: base==4.7.0.1/installed-e4b..., case-insensitive => base>=3 && <4.7) rejecting: case-insensitive-0.4.0.1 (conflict: base==4.7.0.1/installed-e4b..., case-insensitive => base>=3 && <4.6) rejecting: case-insensitive-0.4 (conflict: base==4.7.0.1/installed-e4b..., case-insensitive => base>=3 && <4.5) rejecting: case-insensitive-0.3.0.1, 0.3, 0.2.0.2, 0.2.0.1, 0.2, 0.1 (conflict: hums => case-insensitive>=0.4 && <0.5) Dependency tree exhaustively searched.