Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: stylish-haskell (user goal)
rejecting: stylish-haskell-0.5.14.3, 0.5.14.2, 0.5.14.1, 0.5.14.0, 0.5.13.0,
0.5.12.0, 0.5.11.2, 0.5.11.1, 0.5.11.0, 0.5.10.2, 0.5.10.1, 0.5.10.0, 0.5.9.1,
0.5.9.0, 0.5.8.0, 0.5.7.0, 0.5.6.1, 0.5.6.0, 0.5.5.2, 0.5.5.1, 0.5.5.0,
0.5.4.0, 0.5.3.0, 0.5.2.0, 0.5.1.0, 0.5.0.2, 0.5.0.1 (global constraint
requires ==0.5.0.0)
trying: stylish-haskell-0.5.0.0
trying: base-4.8.1.0/installed-4f7... (dependency of stylish-haskell-0.5.0.0)
next goal: syb (dependency of stylish-haskell-0.5.0.0)
rejecting: syb-0.6, 0.5.1, 0.5, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0 (conflict:
stylish-haskell => syb>=0.3 && <0.4)
rejecting: syb-0.3.7, 0.3.6.2 (conflict: base==4.8.1.0/installed-4f7..., syb
=> base>=4.0 && <4.8)
rejecting: syb-0.3.6.1, 0.3.6 (conflict: base==4.8.1.0/installed-4f7..., syb
=> base>=4.0 && <4.6)
rejecting: syb-0.3.5, 0.3.4, 0.3.3 (conflict: base==4.8.1.0/installed-4f7...,
syb => base>=4.0 && <4.5)
rejecting: syb-0.3.2, 0.3.1, 0.3 (conflict: base==4.8.1.0/installed-4f7...,
syb => base>=4.0 && <4.4)
rejecting: syb-0.2.2, 0.2.1, 0.2, 0.1.0.3, 0.1.0.2, 0.1.0.1, 0.1.0.0
(conflict: stylish-haskell => syb>=0.3 && <0.4)
Dependency tree exhaustively searched.