Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: flowsim (user goal)
rejecting: flowsim-0.3.5, 0.3.4, 0.3.3, 0.3, 0.2.8, 0.2.7 (global constraint
requires ==0.2.6)
trying: flowsim-0.2.6
trying: cmdargs-0.10.13 (dependency of flowsim-0.2.6)
trying: transformers-0.3.0.0/installed-16a... (dependency of cmdargs-0.10.13)
trying: MonadRandom-0.4 (dependency of flowsim-0.2.6)
trying: transformers-compat-0.4.0.4 (dependency of MonadRandom-0.4)
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)
Dependency tree exhaustively searched.