Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: json-tools (user goal)
rejecting: json-tools-0.5.0, json-tools-0.4.0, json-tools-0.3.1,
json-tools-0.3.0, json-tools-0.2.4, json-tools-0.2.3, json-tools-0.2.2,
json-tools-0.2.1, json-tools-0.2.0 (constraint from user target requires
==0.1.0)
trying: json-tools-0.1.0
trying: unix-2.7.2.0/installed-2.7... (dependency of
directory-1.2.6.2/installed-1.2...)
next goal: data-object-json (dependency of json-tools-0.1.0)
rejecting: data-object-json-0.3.1.8, data-object-json-0.3.1.7,
data-object-json-0.3.1.6, data-object-json-0.3.1.5, data-object-json-0.3.1.4,
data-object-json-0.3.1.3, data-object-json-0.3.1.2, data-object-json-0.3.1.1,
data-object-json-0.3.1, data-object-json-0.3.0, data-object-json-0.0.0.1,
data-object-json-0.0.0 (conflict: unix =>
bytestring==0.10.8.1/installed-0.1..., data-object-json => bytestring>=0.9.1.4
&& <0.10)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).