Resolving dependencies... cabal: Could not resolve dependencies: next goal: yackage (user goal) rejecting: yackage-0.7.0.8, 0.7.0.7, 0.7.0.6, 0.7.0.5, 0.7.0.4, 0.7.0.3, 0.7.0.2, 0.7.0.1, 0.7.0, 0.6.0.5, 0.6.0.4, 0.6.0.3, 0.6.0.2, 0.6.0.1, 0.6.0, 0.5.0.1, 0.5.0, 0.4.0, 0.3.0, 0.2.1, 0.2.0, 0.1.0.1, 0.1.0, 0.0.1.2 (global constraint requires ==0.0.1) trying: yackage-0.0.1 trying: base-4.7.0.1/installed-e4b... (dependency of yackage-0.0.1) next goal: blaze-builder (dependency of yackage-0.0.1) rejecting: blaze-builder-0.4.0.1, 0.4.0.0, 0.3.3.4, 0.3.3.3, 0.3.3.2, 0.3.3.1, 0.3.3.0, 0.3.2.0, 0.3.1.1, 0.3.1.0, 0.3.0.2, 0.3.0.1, 0.3.0.0 (conflict: yackage => blaze-builder>=0.2.1.3 && <0.3) rejecting: blaze-builder-0.2.1.4, 0.2.1.3 (conflict: base==4.7.0.1/installed-e4b..., blaze-builder => base>=4 && <4.7) rejecting: blaze-builder-0.2.1.2, 0.2.1.1, 0.2.1.0, 0.2.0.3, 0.2.0.2, 0.2.0.1, 0.2.0.0, 0.1 (conflict: yackage => blaze-builder>=0.2.1.3 && <0.3) Dependency tree exhaustively searched.