Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: HaskellForMaths (user goal)
rejecting: HaskellForMaths-0.4.8, 0.4.7, 0.4.6, 0.4.5, 0.4.4, 0.4.3, 0.4.2,
0.4.1, 0.4.0, 0.3.4, 0.3.3, 0.3.2, 0.3.1, 0.2.2, 0.2.1, 0.2.0, 0.1.9, 0.1.8,
0.1.7, 0.1.6, 0.1.5 (global constraint requires ==0.1.4)
trying: HaskellForMaths-0.1.4
next goal: base (dependency of HaskellForMaths-0.1.4)
rejecting: base-4.8.1.0/installed-4f7... (conflict: HaskellForMaths => base>=3
&& <4)
rejecting: base-4.8.1.0, 4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0,
4.5.1.0, 4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1,
4.2.0.0, 4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires
installed instance)
Dependency tree exhaustively searched.