Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: diagrams-cairo (dependency of diagrams-0.4)
rejecting: diagrams-cairo-1.4, diagrams-cairo-1.3.1.2, diagrams-cairo-1.3.1.1,
diagrams-cairo-1.3.1, diagrams-cairo-1.3.0.6, diagrams-cairo-1.3.0.5,
diagrams-cairo-1.3.0.4, diagrams-cairo-1.3.0.3, diagrams-cairo-1.3.0.2,
diagrams-cairo-1.3.0.1, diagrams-cairo-1.3, diagrams-cairo-1.2.0.7,
diagrams-cairo-1.2.0.6, diagrams-cairo-1.2.0.5, diagrams-cairo-1.2.0.4,
diagrams-cairo-1.2.0.3, diagrams-cairo-1.2.0.2, diagrams-cairo-1.2.0.1,
diagrams-cairo-1.2, diagrams-cairo-1.1.0.2, diagrams-cairo-1.1.0.1,
diagrams-cairo-1.1, diagrams-cairo-1.0.1.2, diagrams-cairo-1.0.1.1,
diagrams-cairo-1.0.1, diagrams-cairo-1.0, diagrams-cairo-0.7,
diagrams-cairo-0.6, diagrams-cairo-0.5.0.2, diagrams-cairo-0.5.0.1,
diagrams-cairo-0.5 (conflict: diagrams => diagrams-cairo>=0.4 && <0.5)
trying: diagrams-cairo-0.4
next goal: base (dependency of diagrams-cairo-0.4)
rejecting: base-4.9.0.0/installed-4.9... (conflict: diagrams-cairo =>
base>=4.2 && <4.5)
rejecting: base-4.9.0.0, base-4.8.2.0, base-4.8.1.0, base-4.8.0.0,
base-4.7.0.2, base-4.7.0.1, base-4.7.0.0, base-4.6.0.1, base-4.6.0.0,
base-4.5.1.0, base-4.5.0.0, base-4.4.1.0, base-4.4.0.0, base-4.3.1.0,
base-4.3.0.0, base-4.2.0.2, base-4.2.0.1, base-4.2.0.0, base-4.1.0.0,
base-4.0.0.0, base-3.0.3.2, base-3.0.3.1 (constraint from non-upgradeable
package requires installed instance)
Dependency tree exhaustively searched.