Resolving dependencies...
cabal: Could not resolve dependencies:
trying: diagrams-contrib-1.3.0.4 (user goal)
trying: MonadRandom-0.4 (dependency of diagrams-contrib-1.3.0.4)
next goal: transformers (dependency of MonadRandom-0.4)
rejecting: transformers-0.3.0.0/installed-16a... (conflict:
transformers-compat-0.4.0.4:three => transformers>=0.4.1 && <0.5)
trying: transformers-0.4.3.0
trying: linear-1.19.1.3 (dependency of diagrams-contrib-1.3.0.4)
trying: vector-0.11.0.0 (dependency of linear-1.19.1.3)
trying: diagrams-lib-1.3.0.2 (dependency of diagrams-contrib-1.3.0.4)
next goal: JuicyPixels (dependency of diagrams-lib-1.3.0.2)
rejecting: JuicyPixels-3.2.5.2, 3.2.5.1, 3.2.5, 3.2.4, 3.2.3.2, 3.2.3.1,
3.2.3, 3.2.2, 3.2.1, 3.2, 3.1.7.1, 3.1.7, 3.1.6.1, 3.1.6, 3.1.5.2 (conflict:
vector==0.11.0.0, JuicyPixels => vector>=0.9 && <0.11)
rejecting: JuicyPixels-3.1.5.1, 3.1.5 (conflict: transformers==0.4.3.0,
JuicyPixels => transformers>=0.2.2 && <0.4)
rejecting: JuicyPixels-3.1.4.1, 3.1.4, 3.1.3.3, 3.1.3.2, 3.1.3.1, 3.1.3,
3.1.2, 3.1.1.1, 3.1.1, 3.1, 3.0, 2.0.2, 2.0.1, 2.0, 1.3, 1.2.1, 1.2, 1.1, 1.0
(conflict: diagrams-lib => JuicyPixels>=3.1.5 && <3.3)
Backjump limit reached (change with --max-backjumps).