Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: barchart (user goal)
rejecting: barchart-0.1.1.1, barchart-0.1.1 (constraint from user target
requires ==0.1)
trying: barchart-0.1
trying: base-4.9.0.0/installed-4.9... (dependency of barchart-0.1)
next goal: diagrams (dependency of barchart-0.1)
rejecting: diagrams-1.4, diagrams-1.3.0.1, diagrams-1.3, diagrams-1.2,
diagrams-1.1.0.1, diagrams-1.1, diagrams-1.0.0.1, diagrams-1.0,
diagrams-0.7.1.1, diagrams-0.7.1, diagrams-0.7, diagrams-0.6, diagrams-0.5,
diagrams-0.4, diagrams-0.3 (conflict: barchart => diagrams>=0.2 && <0.3)
rejecting: diagrams-0.2.2.3, diagrams-0.2.2.2, diagrams-0.2.2.1,
diagrams-0.2.2, diagrams-0.2.1.3, diagrams-0.2.1.2, diagrams-0.2.1.1,
diagrams-0.2.1 (conflict: base==4.9.0.0/installed-4.9..., diagrams => base>=2
&& <4.8)
rejecting: diagrams-0.2 (conflict: base==4.9.0.0/installed-4.9..., diagrams =>
base<4.8)
rejecting: diagrams-0.1 (conflict: barchart => diagrams>=0.2 && <0.3)
Dependency tree exhaustively searched.