Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yesod-core (user goal)
rejecting: yesod-core-1.4.15.1, 1.4.15, 1.4.14, 1.4.13, 1.4.12, 1.4.11.1,
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 (global constraint
requires ==1.1.8.2)
trying: yesod-core-1.1.8.2
next goal: conduit (dependency of yesod-core-1.1.8.2)
rejecting: conduit-1.2.5.1, 1.2.5, 1.2.4.3, 1.2.4.2, 1.2.4.1, 1.2.4, 1.2.3.1,
1.2.3, 1.2.2.2, 1.2.2.1, 1.2.2, 1.2.1, 1.2.0.2, 1.2.0.1, 1.2.0, 1.1.7, 1.1.6,
1.1.5, 1.1.4, 1.1.3, 1.1.2.1, 1.1.2, 1.1.1.1, 1.1.1, 1.1.0.2, 1.1.0.1, 1.1.0
(conflict: resourcet==0.4.10.2, conduit => resourcet>=1.1 && <1.2)
trying: conduit-1.0.17.1
trying: void-0.7.1 (dependency of conduit-1.0.17.1)
trying: semigroups-0.18.0.1 (dependency of void-0.7.1)
trying: semigroups-0.18.0.1:+hashable
trying: semigroups-0.18.0.1:+unordered-containers
trying: semigroups-0.18.0.1:+text
trying: semigroups-0.18.0.1:+tagged
trying: tagged-0.8.2 (dependency of semigroups-0.18.0.1:+tagged)
trying: semigroups-0.18.0.1:+deepseq
trying: semigroups-0.18.0.1:+containers
trying: semigroups-0.18.0.1:+bytestring
trying: aeson-0.10.0.0 (dependency of yesod-core-1.1.8.2)
trying: scientific-0.3.4.4 (dependency of aeson-0.10.0.0)
trying: binary-0.7.5.0/installed-072... (dependency of scientific-0.3.4.4)
next goal: clientsession (dependency of yesod-core-1.1.8.2)
rejecting: clientsession-0.9.1.1, 0.9.1, 0.9.0.5, 0.9.0.4, 0.9.0.3, 0.9.0.2,
0.9.0.1, 0.9 (conflict: yesod-core => clientsession>=0.8 && <0.9)
trying: clientsession-0.8.1
next goal: skein (dependency of clientsession-0.8.1)
rejecting: skein-1.0.9.3, 1.0.9.2, 1.0.9.1, 1.0.9, 1.0.8.1, 1.0.8, 1.0.7,
1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0 (conflict: clientsession =>
skein>=0.1 && <0.2)
rejecting: skein-0.1.0.12, 0.1.0.11, 0.1.0.10, 0.1.0.9 (conflict:
tagged==0.8.2, skein => tagged>=0.2 && <0.5)
rejecting: skein-0.1.0.8, 0.1.0.7, 0.1.0.6, 0.1.0.5, 0.1.0.4, 0.1.0.3,
0.1.0.2, 0.1.0.1, 0.1 (conflict: binary =>
bytestring==0.10.6.0/installed-236..., skein => bytestring>=0.9 && <0.10)
Backjump limit reached (change with --max-backjumps).