Resolving dependencies...
cabal: Could not resolve dependencies:
trying: scrape-changes-0.1.0.2 (user goal)
trying: transformers-0.5.2.0/installed-0.5... (dependency of mtl-2.2.1)
next goal: validation (dependency of scrape-changes-0.1.0.2)
rejecting: validation-0.5.2, validation-0.5.1 (conflict:
transformers==0.5.2.0/installed-0.5..., validation => transformers>=0.3 &&
<0.5)
rejecting: validation-0.5.0, validation-0.4.3, validation-0.4.2,
validation-0.4.1, validation-0.4.0, validation-0.3.4, validation-0.3.3,
validation-0.3.2, validation-0.3.1, validation-0.3.0 (conflict: scrape-changes
=> validation>=0.5.1 && <0.6)
Dependency tree exhaustively searched.