Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: music-score (user goal)
rejecting: music-score-1.9.0, 1.8.1, 1.8, 1.7.2, 1.7.1 (global constraint
requires ==1.7)
trying: music-score-1.7
trying: base-4.8.1.0/installed-4f7... (dependency of music-score-1.7)
next goal: vector-space-points (dependency of music-score-1.7)
rejecting: vector-space-points-0.2.1.1, 0.2.1, 0.2 (conflict: music-score =>
vector-space-points==0.1.3)
rejecting: vector-space-points-0.1.3 (conflict:
base==4.8.1.0/installed-4f7..., vector-space-points => base>=4.0 && <4.8)
rejecting: vector-space-points-0.1.2.1, 0.1.2.0, 0.1.1.1, 0.1.1.0, 0.1.0.0
(conflict: music-score => vector-space-points==0.1.3)
Dependency tree exhaustively searched.