Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: nehe-tuts (user goal)
rejecting: nehe-tuts-0.2.4, 0.2.3, 0.2.2 (global constraint requires ==0.2.1)
trying: nehe-tuts-0.2.1
trying: base-4.7.0.1/installed-e4b... (dependency of nehe-tuts-0.2.1)
next goal: array (dependency of nehe-tuts-0.2.1)
rejecting: array-0.5.0.0/installed-98a..., 0.5.1.0, 0.5.0.0, 0.4.0.1, 0.4.0.0
(conflict: nehe-tuts => array==0.3.*)
rejecting: array-0.3.0.3 (conflict: base==4.7.0.1/installed-e4b..., array =>
base>=4.2 && <4.5)
rejecting: array-0.3.0.2, 0.3.0.1 (conflict: base==4.7.0.1/installed-e4b...,
array => base>=4.2 && <4.4)
rejecting: array-0.3.0.0 (conflict: base==4.7.0.1/installed-e4b..., array =>
base>=3 && <4.4)
rejecting: array-0.2.0.0, 0.1.0.0 (conflict: nehe-tuts => array==0.3.*)
Dependency tree exhaustively searched.