Resolving dependencies... cabal: Could not resolve dependencies: next goal: gtk (user goal) rejecting: gtk-0.13.9, 0.13.8.1, 0.13.8, 0.13.7, 0.13.6, 0.13.4, 0.13.3, 0.13.2, 0.13.1, 0.13.0.3, 0.13.0.2, 0.13.0.1, 0.13.0.0, 0.12.5.7, 0.12.5.6, 0.12.5.5, 0.12.5.4, 0.12.5.3, 0.12.5.2, 0.12.5.1, 0.12.5.0, 0.12.4, 0.12.3.1, 0.12.3, 0.12.2, 0.12.1, 0.12.0, 0.11.2 (global constraint requires ==0.11.1) trying: gtk-0.11.1 trying: base-4.8.1.0/installed-4f7... (dependency of gtk-0.11.1) next goal: pango (dependency of gtk-0.11.1) rejecting: pango-0.13.1.0, 0.13.0.5, 0.13.0.4, 0.13.0.3, 0.13.0.2, 0.13.0.1, 0.13.0.0, 0.12.5.3, 0.12.5.0, 0.12.4, 0.12.3, 0.12.2, 0.12.1, 0.12.0 (conflict: gtk => pango>=0.11.1 && <0.12) trying: pango-0.11.2 trying: directory-1.2.2.0/installed-258... (dependency of pango-0.11.2) next goal: haskell98 (dependency of gtk-0.11.1) rejecting: haskell98-2.0.0.3 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=4.7 && <4.8) rejecting: haskell98-2.0.0.2 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base==4.6.*) rejecting: haskell98-2.0.0.1, 2.0.0.0 (conflict: directory==1.2.2.0/installed-258..., haskell98 => directory>=1.1 && <1.2) rejecting: haskell98-1.1.0.1, 1.1.0.0, 1.0.1.1 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6) rejecting: haskell98-1.0.1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.6) rejecting: haskell98-1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.3) Dependency tree exhaustively searched.