Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: threadscope (user goal)
rejecting: threadscope-0.2.7, 0.2.6, 0.2.5, 0.2.4, 0.2.3, 0.2.2, 0.2.1, 0.2.0
(global constraint requires ==0.1.3)
trying: threadscope-0.1.3
trying: base-4.7.0.1/installed-e4b... (dependency of threadscope-0.1.3)
next goal: unix (dependency of threadscope-0.1.3)
rejecting: unix-2.7.0.1/installed-0d8..., 2.7.1.0, 2.7.0.1, 2.7.0.0, 2.6.0.1,
2.6.0.0, 2.5.1.1, 2.5.1.0, 2.5.0.0 (conflict: threadscope => unix>=2.3 &&
<2.5)
rejecting: unix-2.4.2.0, 2.4.1.0 (conflict: base==4.7.0.1/installed-e4b...,
unix => base>=4.2 && <4.4)
rejecting: unix-2.4.0.2, 2.4.0.1 (conflict: base==4.7.0.1/installed-e4b...,
unix => base>=4.2 && <4.3)
rejecting: unix-2.4.0.0 (conflict: base==4.7.0.1/installed-e4b..., unix =>
base>=4.1 && <4.3)
rejecting: unix-2.3.2.0, 2.3.1.0, 2.3.0.0 (conflict:
base==4.7.0.1/installed-e4b..., unix => base<4.3)
rejecting: unix-2.2.0.0, 2.0 (conflict: threadscope => unix>=2.3 && <2.5)
Dependency tree exhaustively searched.