Warning: The install command is a part of the legacy v1 style of cabal usage.

Please switch to using either the new project style and the new-install
command or the legacy v1-install alias as new-style projects will become the
default in the next version of cabal-install. Please file a bug if you cannot
replicate a working v1- use case with the new-style commands.

For more information, see: https://wiki.haskell.org/Cabal/NewBuild

Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: perceptual-hash (user goal)
[__0] rejecting: perceptual-hash-0.1.3.2 (constraint from user target requires
==0.1.3.1)
[__0] trying: perceptual-hash-0.1.3.1
[__1] trying: hip-1.5.3.0 (dependency of perceptual-hash)
[__2] trying: netpbm-1.0.3 (dependency of hip)
[__3] trying: unordered-containers-0.2.10.0 (dependency of netpbm)
[__4] trying: hashable-1.3.0.0 (dependency of unordered-containers)
[__5] trying: Chart-diagrams-1.9.2 (dependency of hip)
[__6] next goal: svg-builder (dependency of Chart-diagrams)
[__6] rejecting: svg-builder-0.1.1, svg-builder-0.1.0.2, svg-builder-0.1.0.1,
svg-builder-0.1 (conflict: hashable==1.3.0.0, svg-builder => hashable>=1.1 &&
<1.3)
[__6] fail (backjumping, conflict set: Chart-diagrams, hashable, svg-builder)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).