Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: persistent (user goal)
rejecting: persistent-2.6, persistent-2.5, persistent-2.2.4.1,
persistent-2.2.4, persistent-2.2.3, persistent-2.2.2.1, persistent-2.2.2,
persistent-2.2.1, persistent-2.2, persistent-2.1.6, persistent-2.1.5,
persistent-2.1.4, persistent-2.1.3, persistent-2.1.2, persistent-2.1.1.7,
persistent-2.1.1.6, persistent-2.1.1.5, persistent-2.1.1.4,
persistent-2.1.1.3, persistent-2.1.1.2, persistent-2.1.1.1, persistent-2.1.1,
persistent-2.1.0.2, persistent-2.1.0.1, persistent-2.1, persistent-1.3.3,
persistent-1.3.2, persistent-1.3.1.1, persistent-1.3.1, persistent-1.3.0.6,
persistent-1.3.0.5, persistent-1.3.0.4, persistent-1.3.0.3,
persistent-1.3.0.2, persistent-1.3.0, persistent-1.2.3.3, persistent-1.2.3.2,
persistent-1.2.3.0, persistent-1.2.2.0, persistent-1.2.1.2,
persistent-1.2.1.1, persistent-1.2.1, persistent-1.2.0.2, persistent-1.2.0.1
(constraint from user target requires ==1.2.0)
trying: persistent-1.2.0
trying: template-haskell-2.11.0.0/installed-2.1... (dependency of
persistent-1.2.0)
trying: hashable-1.2.4.0 (dependency of scientific-0.3.4.9)
next goal: aeson (dependency of persistent-1.2.0)
rejecting: aeson-1.0.2.1, aeson-1.0.2.0, aeson-1.0.1.0, aeson-1.0.0.0,
aeson-0.11.2.1, aeson-0.11.2.0, aeson-0.11.1.4, aeson-0.11.1.3,
aeson-0.11.1.2, aeson-0.11.1.1, aeson-0.11.1.0, aeson-0.11.0.0, aeson-0.9.0.1,
aeson-0.9.0.0, aeson-0.8.1.1, aeson-0.8.1.0, aeson-0.8.0.2, aeson-0.7.0.6,
aeson-0.7.0.4 (conflict: persistent => aeson>=0.5 && <0.7)
rejecting: aeson-0.6.2.1, aeson-0.6.2.0, aeson-0.6.1.0 (conflict:
template-haskell==2.11.0.0/installed-2.1..., aeson => template-haskell>=2.4 &&
<2.10)
rejecting: aeson-0.6.0.2, aeson-0.6.0.1, aeson-0.6.0.0, aeson-0.5.0.0
(conflict: hashable==1.2.4.0, aeson => hashable>=1.1.2.0 && <1.2)
rejecting: aeson-0.4.0.1, aeson-0.4.0.0, aeson-0.3.2.14, aeson-0.3.2.13,
aeson-0.3.2.12, aeson-0.3.2.11, aeson-0.3.2.10, aeson-0.3.2.9, aeson-0.3.2.8,
aeson-0.3.2.7, aeson-0.3.2.6, aeson-0.3.2.5, aeson-0.3.2.4, aeson-0.3.2.3,
aeson-0.3.2.2, aeson-0.3.2.1, aeson-0.3.2.0, aeson-0.3.1.1, aeson-0.3.1.0,
aeson-0.3.0.0, aeson-0.2.0.0, aeson-0.1.0.0, aeson-0.10.0.0, aeson-0.8.0.1,
aeson-0.8.0.0, aeson-0.7.0.5, aeson-0.7.0.3, aeson-0.7.0.2, aeson-0.7.0.1,
aeson-0.7.0.0 (conflict: persistent => aeson>=0.5 && <0.7)
Dependency tree exhaustively searched.