Resolving dependencies...
cabal: Could not resolve dependencies:
trying: haste-lib-0.6.0.0 (user goal)
trying: base-4.9.1.0/installed-4.9... (dependency of haste-lib-0.6.0.0)
next goal: haste-prim (dependency of haste-lib-0.6.0.0)
rejecting: haste-prim-0.6.0.0 (conflict: base==4.9.1.0/installed-4.9...,
haste-prim => base>=4.6 && <4.9)
Dependency tree exhaustively searched.