Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: buildwrapper (user goal)
rejecting: buildwrapper-0.9.1, 0.9.0, 0.8.11, 0.8.10, 0.8.9, 0.8.8, 0.8.7,
0.8.6, 0.8.5, 0.8.4, 0.8.3, 0.8.2, 0.8.1, 0.8.0, 0.7.7, 0.7.6, 0.7.5, 0.7.4,
0.7.3, 0.7.2, 0.7.1, 0.7.0, 0.6.4, 0.6.3, 0.6.2, 0.6.1, 0.6.0, 0.5.2, 0.5.1,
0.5.0, 0.4.1, 0.4.0, 0.3.0, 0.2.2, 0.2.1 (global constraint requires ==0.2)
trying: buildwrapper-0.2
trying: base-4.7.0.1/installed-e4b... (dependency of buildwrapper-0.2)
next goal: aeson-native (dependency of buildwrapper-0.2)
rejecting: aeson-native-0.3.3.2, 0.3.3.1 (conflict: bytestring =>
deepseq==1.3.0.2/installed-733..., aeson-native => deepseq<1.2)
trying: aeson-native-0.3.3
next goal: blaze-textual-native (dependency of aeson-native-0.3.3)
rejecting: blaze-textual-native-0.2.1.1, 0.2.1 (conflict: base =>
integer-gmp==0.5.1.0/installed-d42..., blaze-textual-native =>
integer-gmp>=0.2 && <0.4)
Dependency tree exhaustively searched.