Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: normaldistribution (user goal)
rejecting: normaldistribution-1.1.0.3, normaldistribution-1.1.0.2,
normaldistribution-1.1.0.1 (constraint from user target requires ==1.1)
trying: normaldistribution-1.1
trying: base-4.9.0.0/installed-4.9... (dependency of normaldistribution-1.1)
next goal: haskell98 (dependency of normaldistribution-1.1)
rejecting: haskell98-2.0.0.3, haskell98-2.0.0.2, haskell98-2.0.0.1,
haskell98-2.0.0.0, haskell98-1.1.0.1, haskell98-1.1.0.0 (conflict:
normaldistribution => haskell98<1.1)
rejecting: haskell98-1.0.1.1 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.0 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base<4.6)
rejecting: haskell98-1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98
=> base<4.3)
Dependency tree exhaustively searched.