Resolving dependencies...
cabal: Could not resolve dependencies:
trying: kafka-device-leap-0.2.1.2 (user goal)
trying: base-4.9.0.0/installed-4.9... (dependency of
kafka-device-leap-0.2.1.2)
next goal: hleap (dependency of kafka-device-leap-0.2.1.2)
rejecting: hleap-0.1.2.7, hleap-0.1.2.6, hleap-0.1.2.5, hleap-0.1.2.4
(conflict: base==4.9.0.0/installed-4.9..., hleap => base>=4.8 && <4.9)
Dependency tree exhaustively searched.