Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: indentation (user goal)
rejecting: indentation-0.2.1.1, 0.2.1, 0.2.0.3, 0.2.0.2 (global constraint
requires ==0.2.0.0)
trying: indentation-0.2.0.0
trying: indentation-0.2.0.0:+trifecta
next goal: parsers (dependency of indentation-0.2.0.0:+trifecta)
rejecting: parsers-0.12.2.1, 0.12.1.1, 0.12.1, 0.12 (conflict:
indentation-0.2.0.0:trifecta => parsers==0.11.0.*)
trying: parsers-0.11.0.3
trying: transformers-0.3.0.0/installed-16a... (dependency of parsers-0.11.0.3)
next goal: trifecta (dependency of indentation-0.2.0.0:+trifecta)
rejecting: trifecta-1.5.1.3, 1.5.1.2, 1.5.1.1, 1.5.1, 1.5 (conflict:
indentation-0.2.0.0:trifecta => trifecta==1.4.*)
trying: trifecta-1.4.3
trying: reducers-3.10.3.1 (dependency of trifecta-1.4.3)
trying: keys-3.10.2 (dependency of reducers-3.10.3.1)
trying: free-4.12.1 (dependency of keys-3.10.2)
trying: exceptions-0.8.0.2 (dependency of free-4.12.1)
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==0.3.0.0/installed-16a..., 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)
Backjump limit reached (change with --max-backjumps).