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
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Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: gi-poppler (user goal)
[__0] rejecting: gi-poppler-0.18.21 (conflict: pkg-config package
poppler-glib>=0.18 && <1, not found in the pkg-config database)
[__0] rejecting: gi-poppler-0.18.20, gi-poppler-0.18.19, gi-poppler-0.18.18,
gi-poppler-0.18.17, gi-poppler-0.18.15, gi-poppler-0.18.14,
gi-poppler-0.18.13, gi-poppler-0.18.12, gi-poppler-0.18.11,
gi-poppler-0.18.10, gi-poppler-0.18.9, gi-poppler-0.18.8, gi-poppler-0.18.7,
gi-poppler-0.18.6, gi-poppler-0.18.5, gi-poppler-0.18.4, gi-poppler-0.18.3,
gi-poppler-0.18.2, gi-poppler-0.18.1, gi-poppler-0.0.34.15,
gi-poppler-0.0.34.14, gi-poppler-0.0.34.13, gi-poppler-0.0.34.12,
gi-poppler-0.0.30.12 (constraint from user target requires ==0.18.21)
[__0] fail (backjumping, conflict set: gi-poppler)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-poppler