Resolving dependencies... cabal: Could not resolve dependencies: next goal: yackage (user goal) rejecting: yackage-0.8.0, 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 (global constraint requires ==0.6.0) trying: yackage-0.6.0 trying: base-4.8.1.0/installed-4f7... (dependency of yackage-0.6.0) next goal: blaze-html (dependency of yackage-0.6.0) rejecting: blaze-html-0.8.1.1, 0.8.1.0, 0.8.0.2, 0.8.0.1, 0.8.0.0, 0.7.1.0, 0.7.0.3, 0.7.0.2, 0.7.0.1, 0.7.0.0, 0.6.1.3, 0.6.1.2, 0.6.1.1, 0.6.1.0, 0.6.0.0 (conflict: yackage => blaze-html>=0.5 && <0.6) trying: blaze-html-0.5.1.3 next goal: blaze-markup (dependency of blaze-html-0.5.1.3) rejecting: blaze-markup-0.7.0.3, 0.7.0.2, 0.7.0.1, 0.7.0.0, 0.6.3.0, 0.6.2.0, 0.6.1.1, 0.6.1.0, 0.6.0.0 (conflict: blaze-html => blaze-markup>=0.5.1 && <0.6) rejecting: blaze-markup-0.5.2.1, 0.5.2.0, 0.5.1.7, 0.5.1.6, 0.5.1.5, 0.5.1.4, 0.5.1.3, 0.5.1.2, 0.5.1.1, 0.5.1.0 (conflict: base==4.8.1.0/installed-4f7..., blaze-markup => base>=4 && <4.8) rejecting: blaze-markup-0.5.0.0 (conflict: blaze-html => blaze-markup>=0.5.1 && <0.6) Dependency tree exhaustively searched.