Resolving dependencies...
cabal: Could not resolve dependencies:
trying: hcc-0.0.0 (user goal)
trying: base-4.7.0.1/installed-e4b... (dependency of hcc-0.0.0)
next goal: bytestring (dependency of hcc-0.0.0)
rejecting: bytestring-0.10.4.0/installed-9f4..., 0.10.6.0, 0.10.4.1, 0.10.4.0,
0.10.2.0, 0.10.0.2, 0.10.0.1, 0.10.0.0, 0.9.2.1, 0.9.2.0 (conflict: hcc =>
bytestring>=0.9.1.4 && <0.9.2)
rejecting: bytestring-0.9.1.10, 0.9.1.9, 0.9.1.8, 0.9.1.7, 0.9.1.6, 0.9.1.5
(conflict: base==4.7.0.1/installed-e4b..., bytestring => base<4.4)
rejecting: bytestring-0.9.1.4 (conflict: base==4.7.0.1/installed-e4b...,
bytestring => base<4.2)
rejecting: bytestring-0.9.1.3, 0.9.1.2, 0.9.1.1, 0.9.1.0, 0.9.0.4, 0.9.0.3,
0.9.0.2, 0.9.0.1, 0.9 (conflict: hcc => bytestring>=0.9.1.4 && <0.9.2)
Dependency tree exhaustively searched.