Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yesod-core (user goal)
rejecting: yesod-core-1.4.11, 1.4.10, 1.4.9.1, 1.4.9, 1.4.8.3, 1.4.8.2,
1.4.8.1, 1.4.8, 1.4.7.3, 1.4.7.2, 1.4.7.1, 1.4.7, 1.4.6.2, 1.4.6.1, 1.4.6,
1.4.5, 1.4.4.5, 1.4.4.4, 1.4.4.3, 1.4.4.2, 1.4.4.1, 1.4.4, 1.4.3.1, 1.4.3,
1.4.2, 1.4.1.1, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4.0, 1.2.20.1, 1.2.20, 1.2.19.2,
1.2.19.1, 1.2.19, 1.2.18, 1.2.17, 1.2.16.1, 1.2.16, 1.2.15.2, 1.2.15.1,
1.2.15, 1.2.14, 1.2.13.1, 1.2.13, 1.2.12, 1.2.11.1, 1.2.11, 1.2.10, 1.2.9.2,
1.2.9.1, 1.2.9, 1.2.8, 1.2.7, 1.2.6.7, 1.2.6.6, 1.2.6.5, 1.2.6.4, 1.2.6.3,
1.2.6.2, 1.2.6.1, 1.2.6, 1.2.5, 1.2.4.5, 1.2.4.4, 1.2.4.3, 1.2.4.2, 1.2.4.1,
1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2.0,
1.1.8.3, 1.1.8.2 (global constraint requires ==1.1.8.1)
trying: yesod-core-1.1.8.1
next goal: resourcet (dependency of yesod-core-1.1.8.1)
rejecting: resourcet-1.1.5, 1.1.4.1, 1.1.4, 1.1.3.3, 1.1.3.2, 1.1.3.1, 1.1.3,
1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2, 1.1.1, 1.1.0.1, 1.1.0 (conflict: yesod-core
=> resourcet>=0.3 && <0.5)
trying: resourcet-0.4.10.2
next goal: mtl (dependency of resourcet-0.4.10.2)
rejecting: mtl-2.2.1, 2.2.0.1, 2.2 (conflict: resourcet => mtl>=2.0 && <2.2)
trying: mtl-2.1.3.1
trying: monad-logger-0.3.13.1 (dependency of yesod-core-1.1.8.1)
trying: transformers-compat-0.4.0.4 (dependency of monad-logger-0.3.13.1)
trying: transformers-compat-0.4.0.4:-two
trying: transformers-compat-0.4.0.4:-three
next goal: transformers (dependency of yesod-core-1.1.8.1)
rejecting: transformers-0.3.0.0/installed-16a... (conflict:
transformers-compat-0.4.0.4:three => transformers>=0.4.1 && <0.5)
rejecting: transformers-0.4.3.0, 0.4.2.0, 0.4.1.0, 0.4.0.0 (conflict:
yesod-core => transformers>=0.2.2 && <0.4)
rejecting: transformers-0.3.0.0 (conflict: transformers-compat-0.4.0.4:three
=> transformers>=0.4.1 && <0.5)
rejecting: transformers-0.2.2.1, 0.2.2.0 (conflict: mtl =>
transformers==0.3.*)
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 (conflict: yesod-core => transformers>=0.2.2 &&
<0.4)
Backjump limit reached (change with --max-backjumps).