Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: graphql-spice-1.0.0.0 (user goal)
[__1] trying: graphql-1.0.3.0 (dependency of graphql-spice)
[__2] trying: graphql:+json
[__3] next goal: aeson (dependency of graphql-spice)
[__3] rejecting: aeson-2.0.3.0 (conflict: graphql +json => aeson>=1.5.6 &&
<1.6)
[__3] rejecting: aeson-2.0.2.0 (conflict: graphql-spice => aeson^>=2.0.3)
[__3] skipping: aeson-2.0.1.0, aeson-2.0.0.0, aeson-1.5.6.0, aeson-1.5.5.1,
aeson-1.5.5.0, aeson-1.5.4.1, aeson-1.5.4.0, aeson-1.5.3.0, aeson-1.5.2.0,
aeson-1.5.1.0, aeson-1.5.0.0, aeson-1.4.7.1, aeson-1.4.7.0, aeson-1.4.6.0,
aeson-1.4.5.0, aeson-1.4.4.0, aeson-1.4.3.0, aeson-1.4.2.0, aeson-1.4.1.0,
aeson-1.4.0.0, aeson-1.3.1.1, aeson-1.3.1.0, aeson-1.3.0.0, aeson-1.2.4.0,
aeson-1.2.3.0, aeson-1.2.2.0, aeson-1.2.1.0, aeson-1.2.0.0, aeson-1.1.2.0,
aeson-1.1.1.0, aeson-1.1.0.0, aeson-1.0.2.1, aeson-1.0.2.0, aeson-1.0.1.0,
aeson-1.0.0.0, aeson-0.11.3.0, 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, aeson-0.6.2.1, aeson-0.6.2.0,
aeson-0.6.1.0, aeson-0.6.0.2, aeson-0.6.0.1, aeson-0.6.0.0, aeson-0.5.0.0,
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 (has
the same characteristics that caused the previous version to fail: excluded by
constraint '^>=2.0.3' from 'graphql-spice')
[__3] fail (backjumping, conflict set: aeson, graphql, graphql-spice,
graphql:json)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: graphql-spice, aeson, graphql,
graphql:json
Try running with --minimize-conflict-set to improve the error message.