Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: bound-gen (user goal)
rejecting: bound-gen-0.1.0.2, bound-gen-0.1.0.1 (constraint from user target
requires ==0.1.0.0)
trying: bound-gen-0.1.0.0
trying: transformers-0.5.2.0/installed-0.5... (dependency of mtl-2.2.1)
next goal: bound (dependency of bound-gen-0.1.0.0)
rejecting: bound-1.0.7, bound-1.0.6, bound-1.0.5, bound-1.0.4 (conflict:
transformers==0.5.2.0/installed-0.5..., bound => transformers>=0.2 && <0.5)
rejecting: bound-1.0.3, bound-1.0.2, bound-1.0.1, bound-1.0, bound-0.9.1.1,
bound-0.9.1, bound-0.9.0.1, bound-0.9, bound-0.8.1, bound-0.8, bound-0.7,
bound-0.6.1, bound-0.6, bound-0.5.1, bound-0.5.0.2, bound-0.5.0.1, bound-0.5,
bound-0.4, bound-0.3.2, bound-0.3.1, bound-0.2.1, bound-0.2, bound-0.1.4,
bound-0.1.3, bound-0.1.2, bound-0.1.1, bound-0.1 (conflict:
transformers==0.5.2.0/installed-0.5..., bound => transformers>=0.2 && <0.4)
Dependency tree exhaustively searched.