Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of
DifferentialEvolution-0.0.2)
next goal: fclabels (dependency of DifferentialEvolution-0.0.2)
rejecting: fclabels-2.0.3.1, fclabels-2.0.3, fclabels-2.0.2.4,
fclabels-2.0.2.3, fclabels-2.0.2.2, fclabels-2.0.2.1, fclabels-2.0.2,
fclabels-2.0.1.1, fclabels-2.0.1, fclabels-2.0.0.5, fclabels-2.0.0.4,
fclabels-2.0.0.3, fclabels-2.0.0.2, fclabels-2.0.0.1, fclabels-2.0,
fclabels-1.1.7.1, fclabels-1.1.7, fclabels-1.1.6, fclabels-1.1.5,
fclabels-1.1.4.3, fclabels-1.1.4.2, fclabels-1.1.4.1, fclabels-1.1.4,
fclabels-1.1.3, fclabels-1.1.2, fclabels-1.1.1.1, fclabels-1.1.1.0,
fclabels-1.1.0.2, fclabels-1.1.0.1, fclabels-1.1.0, fclabels-1.0.5,
fclabels-1.0.4, fclabels-1.0.3, fclabels-1.0.2, fclabels-1.0.1, fclabels-1.0
(conflict: DifferentialEvolution => fclabels>=0.11 && <0.12)
trying: fclabels-0.11.2
next goal: template-haskell (dependency of fclabels-0.11.2)
rejecting: template-haskell-2.11.0.0/installed-2.1...,
template-haskell-2.11.0.0, template-haskell-2.10.0.0,
template-haskell-2.9.0.0, template-haskell-2.8.0.0, template-haskell-2.7.0.0
(conflict: fclabels => template-haskell>=2.2 && <2.7)
rejecting: template-haskell-2.6.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base==4.4.*)
rejecting: template-haskell-2.5.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base==4.3.*)
rejecting: template-haskell-2.4.0.1 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base==4.2.*)
rejecting: template-haskell-2.4.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base>=3 && <4.3)
rejecting: template-haskell-2.3.0.1, template-haskell-2.3.0.0,
template-haskell-2.2.0.0 (conflict: base==4.9.0.0/installed-4.9...,
template-haskell => base<4.3)
Dependency tree exhaustively searched.