Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: transformers-compat (user goal)
rejecting: transformers-compat-0.4.0.4, 0.4.0.3, 0.4.0.2, 0.3.3.4, 0.3.3.3,
0.3.3.2, 0.3.3, 0.3.2, 0.3, 0.2, 0.1.1.1, 0.1.1 (global constraint requires
==0.1)
trying: transformers-compat-0.1
trying: transformers-0.4.2.0/installed-21d... (dependency of
transformers-compat-0.1)
rejecting: transformers-compat-0.1:-transformers2 (conflict:
transformers==0.4.2.0/installed-21d..., transformers-compat-0.1:transformers2
=> transformers>=0.3 && <0.4)
rejecting: transformers-compat-0.1:+transformers2 (conflict:
transformers==0.4.2.0/installed-21d..., transformers-compat-0.1:transformers2
=> transformers>=0.2 && <0.3)
Dependency tree exhaustively searched.