Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: comonad-transformers (user goal)
rejecting: comonad-transformers-4.0, comonad-transformers-3.1,
comonad-transformers-3.0.4, comonad-transformers-3.0.3,
comonad-transformers-3.0.2, comonad-transformers-3.0.1,
comonad-transformers-3.0.0.1, comonad-transformers-3.0,
comonad-transformers-2.1.2, comonad-transformers-2.1.1.1,
comonad-transformers-2.1.1, comonad-transformers-2.1,
comonad-transformers-2.0.3, comonad-transformers-2.0.2,
comonad-transformers-2.0.0, comonad-transformers-1.8.0.3,
comonad-transformers-1.8.0.2, comonad-transformers-1.8.0.1,
comonad-transformers-1.8.0, comonad-transformers-1.7,
comonad-transformers-1.6.3, comonad-transformers-1.6.2,
comonad-transformers-1.6.1, comonad-transformers-1.6.0,
comonad-transformers-1.5.3, comonad-transformers-1.5.2.6,
comonad-transformers-1.5.2.5, comonad-transformers-1.5.2.3,
comonad-transformers-1.5.2.2, comonad-transformers-1.5.2.1,
comonad-transformers-1.5.2, comonad-transformers-1.5.0.4,
comonad-transformers-1.5.0.2, comonad-transformers-1.5.0.1,
comonad-transformers-1.5.0, comonad-transformers-1.4.0,
comonad-transformers-1.3.0.1, comonad-transformers-1.3.0,
comonad-transformers-1.2.1, comonad-transformers-1.2.0,
comonad-transformers-1.1.0, comonad-transformers-1.0.1,
comonad-transformers-1.0.0, comonad-transformers-0.10.1.1,
comonad-transformers-0.10.1, comonad-transformers-0.10.0,
comonad-transformers-0.9.0, comonad-transformers-0.7.0,
comonad-transformers-0.6.5, comonad-transformers-0.6.2,
comonad-transformers-0.6.1, comonad-transformers-0.6.0,
comonad-transformers-0.5.0, comonad-transformers-0.4.1,
comonad-transformers-0.4, comonad-transformers-0.3,
comonad-transformers-0.2.1, comonad-transformers-0.2.0,
comonad-transformers-0.1.1 (constraint from user target requires ==0.1.0)
trying: comonad-transformers-0.1.0
trying: base-4.9.0.0/installed-4.9... (dependency of
comonad-transformers-0.1.0)
next goal: transformers (dependency of comonad-transformers-0.1.0)
rejecting: transformers-0.5.2.0/installed-0.5..., transformers-0.5.2.0,
transformers-0.5.1.0, transformers-0.5.0.1, transformers-0.5.0.0,
transformers-0.4.3.0, transformers-0.4.2.0, transformers-0.4.1.0,
transformers-0.3.0.0 (conflict: comonad-transformers => transformers>=0.2.0 &&
<=0.3)
rejecting: transformers-0.2.2.1 (conflict: base==4.9.0.0/installed-4.9...,
transformers => base>=2 && <4.8 || >=1.0 && <2)
rejecting: transformers-0.2.1.0, transformers-0.2.0.0 (conflict:
base==4.9.0.0/installed-4.9..., transformers => base>=2 && <4.3 || >=1.0 &&
<2)
rejecting: transformers-0.1.4.0, transformers-0.1.3.0, transformers-0.1.1.0,
transformers-0.1.0.1, transformers-0.0.1.0, transformers-0.0.0.0,
transformers-0.5.0.2, transformers-0.4.0.0 (conflict: comonad-transformers =>
transformers>=0.2.0 && <=0.3)
rejecting: transformers-0.2.2.0 (conflict: base==4.9.0.0/installed-4.9...,
transformers => base>=2 && <4.6 || >=1.0 && <2)
rejecting: transformers-0.1.0.0 (conflict: comonad-transformers =>
transformers>=0.2.0 && <=0.3)
Dependency tree exhaustively searched.