Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: classy-prelude-yesod (user goal)
rejecting: classy-prelude-yesod-0.12.4, 0.12.3, 0.12.0.1, 0.12.0, 0.11.1,
0.11.0, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0, 0.9.5, 0.9.4, 0.9.3
(global constraint requires ==0.9.2)
trying: classy-prelude-yesod-0.9.2
trying: persistent-2.2.1 (dependency of classy-prelude-yesod-0.9.2)
trying: conduit-1.2.5 (dependency of persistent-2.2.1)
next goal: classy-prelude-conduit (dependency of classy-prelude-yesod-0.9.2)
rejecting: classy-prelude-conduit-0.12.4, 0.12.3, 0.12.0.1, 0.12.0, 0.11.1,
0.11.0, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0, 0.9.5, 0.9.4, 0.9.3
(conflict: classy-prelude-yesod => classy-prelude-conduit>=0.9.2 && <0.9.3)
rejecting: classy-prelude-conduit-0.9.2 (conflict: conduit==1.2.5,
classy-prelude-conduit => conduit>=1.0 && <1.2)
rejecting: classy-prelude-conduit-0.9.1, 0.9.0, 0.8.1, 0.8.0, 0.7.0, 0.6.0,
0.5.3, 0.5.2, 0.5.1, 0.5.0, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0.1, 0.4.0, 0.3.1,
0.3.0.0, 0.2.0.0, 0.1.0.0 (conflict: classy-prelude-yesod =>
classy-prelude-conduit>=0.9.2 && <0.9.3)
Backjump limit reached (change with --max-backjumps).