Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: simple-postgresql-orm (user goal)
rejecting: simple-postgresql-orm-0.9.0.1 (global constraint requires
==0.9.0.0)
trying: simple-postgresql-orm-0.9.0.0
trying: transformers-0.3.0.0/installed-16a... (dependency of
simple-postgresql-orm-0.9.0.0)
next goal: simple (dependency of simple-postgresql-orm-0.9.0.0)
rejecting: simple-0.10.1, 0.10.0.3, 0.10.0.2, 0.10.0.1, 0.10.0.0, 0.9.0.0
(conflict: simple-postgresql-orm => simple>=0.8.0 && <0.9)
trying: simple-0.8.1.0
trying: wai-extra-3.0.7.1 (dependency of simple-0.8.1.0)
trying: lifted-base-0.2.3.6 (dependency of wai-extra-3.0.7.1)
trying: monad-control-1.0.0.4 (dependency of lifted-base-0.2.3.6)
trying: transformers-compat-0.4.0.4 (dependency of monad-control-1.0.0.4)
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.