Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: wl-pprint-terminfo (user goal)
rejecting: wl-pprint-terminfo-3.7.1.3, 3.7.1.2, 3.7.1.1, 3.7.1, 3.7, 3.6, 3.5,
3.4, 3.3.1, 3.3, 3.0.1, 3.0, 0.8.4, 0.8.3.2, 0.8.3.1, 0.8.3, 0.8.2, 0.8.1,
0.8, 0.7.0, 0.6, 0.5.2, 0.5.1 (global constraint requires ==0.5)
trying: wl-pprint-terminfo-0.5
next goal: transformers (dependency of wl-pprint-terminfo-0.5)
rejecting: transformers-0.3.0.0/installed-16a..., 0.4.3.0, 0.4.2.0, 0.4.1.0,
0.4.0.0, 0.3.0.0 (conflict: wl-pprint-terminfo => transformers>=0.2.2 && <0.3)
trying: transformers-0.2.2.1
trying: hscurses-1.4.2.0 (dependency of wl-pprint-terminfo-0.5)
trying: exceptions-0.8.0.2 (dependency of hscurses-1.4.2.0)
trying: transformers-compat-0.4.0.4 (dependency of exceptions-0.8.0.2)
trying: transformers-compat-0.4.0.4:-two
rejecting: transformers-compat-0.4.0.4:-three (conflict:
transformers==0.2.2.1, transformers-compat-0.4.0.4:three =>
transformers>=0.4.1 && <0.5)
rejecting: transformers-compat-0.4.0.4:+three (manual flag can only be changed
explicitly)
Dependency tree exhaustively searched.