Resolving dependencies...
cabal: Could not resolve dependencies:
trying: keystore-0.8.1.0 (user goal)
trying: aeson-1.2.1.0 (dependency of keystore-0.8.1.0)
next goal: api-tools (dependency of keystore-0.8.1.0)
rejecting: api-tools-0.5.2 (conflict: aeson==1.2.1.0, api-tools =>
aeson>=0.6.2 && <0.9)
rejecting: api-tools-0.5.1, api-tools-0.5, api-tools-0.4.0.1, api-tools-0.4,
api-tools-0.3, api-tools-0.2 (conflict: keystore => api-tools>=0.5.2)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).