Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yesod-auth-fb (user goal)
rejecting: yesod-auth-fb-1.6.6, 1.6.5, 1.6.4, 1.6.3, 1.6.2.1, 1.6.2, 1.6.1,
1.6, 1.5.1, 1.5, 1.4, 1.3.2, 1.3.1, 1.3, 1.2.3 (global constraint requires
==1.2.2)
trying: yesod-auth-fb-1.2.2
next goal: aeson (dependency of yesod-auth-fb-1.2.2)
rejecting: aeson-0.9.0.1, 0.9.0.0, 0.8.1.1, 0.8.1.0, 0.8.0.2, 0.8.0.1,
0.8.0.0, 0.7.0.6, 0.7.0.5, 0.7.0.4, 0.7.0.3, 0.7.0.2, 0.7.0.1, 0.7.0.0
(conflict: yesod-auth-fb => aeson==0.6.*)
trying: aeson-0.6.2.1
trying: blaze-builder-0.4.0.1 (dependency of aeson-0.6.2.1)
next goal: bytestring (dependency of yesod-auth-fb-1.2.2)
rejecting: bytestring-0.10.4.0/installed-9f4..., 0.10.6.0, 0.10.4.1, 0.10.4.0,
0.10.2.0, 0.10.0.2, 0.10.0.1, 0.10.0.0 (conflict: yesod-auth-fb =>
bytestring==0.9.*)
rejecting: bytestring-0.9.2.1, 0.9.2.0, 0.9.1.10, 0.9.1.9, 0.9.1.8, 0.9.1.7,
0.9.1.6, 0.9.1.5, 0.9.1.4, 0.9.1.3, 0.9.1.2, 0.9.1.1, 0.9.1.0, 0.9.0.4,
0.9.0.3, 0.9.0.2, 0.9.0.1, 0.9 (conflict: blaze-builder => bytestring>=0.10.4
&& <1.0)
Backjump limit reached (change with --max-backjumps).