Resolving dependencies...
cabal: Could not resolve dependencies:
trying: webify-0.1.7.0 (user goal)
trying: vector-0.11.0.0 (dependency of webify-0.1.7.0)
trying: primitive-0.6.1.0 (dependency of vector-0.11.0.0)
trying: transformers-0.4.2.0/installed-21d... (dependency of
primitive-0.6.1.0)
next goal: optparse-applicative (dependency of webify-0.1.7.0)
rejecting: optparse-applicative-0.12.0.0, 0.11.0.2, 0.11.0.1, 0.11.0, 0.10.0,
0.9.1.1, 0.9.1, 0.9.0, 0.8.1, 0.8.0.1, 0.8.0 (conflict: webify =>
optparse-applicative>=0.5.2 && <0.8.0)
rejecting: optparse-applicative-0.7.0.2, 0.7.0.1, 0.7.0, 0.6.0, 0.5.2.1, 0.5.2
(conflict: transformers==0.4.2.0/installed-21d..., optparse-applicative =>
transformers>=0.2 && <0.4)
rejecting: optparse-applicative-0.5.1, 0.5.0, 0.4.3, 0.4.2, 0.4.1, 0.4.0,
0.3.2, 0.3.1, 0.3.0, 0.2.0, 0.1.1, 0.1.0, 0.0.1 (conflict: webify =>
optparse-applicative>=0.5.2 && <0.8.0)
Dependency tree exhaustively searched.