Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yesod-auth-oauth2 (user goal)
rejecting: yesod-auth-oauth2-0.1.4, 0.1.3, 0.1.2, 0.1.1, 0.1.0, 0.0.12,
0.0.11, 0.0.10, 0.0.9, 0.0.8, 0.0.7, 0.0.6, 0.0.5.1 (global constraint
requires ==0.0.5)
trying: yesod-auth-oauth2-0.0.5
trying: lifted-base-0.2.3.6 (dependency of yesod-auth-oauth2-0.0.5)
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
trying: transformers-compat-0.4.0.4:-three
next goal: transformers (dependency of yesod-auth-oauth2-0.0.5)
rejecting: transformers-0.4.2.0/installed-21d..., 0.4.3.0, 0.4.2.0, 0.4.1.0
(conflict: yesod-auth-oauth2 => transformers>=0.2.2 && <0.4)
rejecting: transformers-0.3.0.0, 0.2.2.1, 0.2.2.0 (conflict:
transformers-compat-0.4.0.4:three => transformers>=0.4.1 && <0.5)
rejecting: transformers-0.2.1.0, 0.2.0.0, 0.1.4.0, 0.1.3.0, 0.1.1.0, 0.1.0.1,
0.1.0.0, 0.0.1.0, 0.0.0.0, 0.4.0.0 (conflict: yesod-auth-oauth2 =>
transformers>=0.2.2 && <0.4)
Backjump limit reached (change with --max-backjumps).