Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: xmonad-contrib (user goal)
rejecting: xmonad-contrib-0.11.4, 0.11.3, 0.11.2, 0.11.1, 0.11, 0.10 (global
constraint requires ==0.9.2)
trying: xmonad-contrib-0.9.2
trying: base-4.7.0.1/installed-e4b... (dependency of xmonad-contrib-0.9.2)
next goal: X11 (dependency of xmonad-contrib-0.9.2)
rejecting: X11-1.6.1.2, 1.6.1.1, 1.6.1, 1.6.0.2, 1.6.0.1, 1.6.0 (conflict:
xmonad-contrib => X11>=1.5.0.0 && <1.6)
trying: X11-1.5.0.1
rejecting: X11-1.5.0.1:+smaller_base (conflict:
base==4.7.0.1/installed-e4b..., X11-1.5.0.1:smaller_base => base>=4 && <4.7)
rejecting: X11-1.5.0.1:-smaller_base (conflict:
base==4.7.0.1/installed-e4b..., X11-1.5.0.1:smaller_base => base>=3 && <4)
Dependency tree exhaustively searched.