Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: github-backup (user goal)
rejecting: github-backup-1.20161118, github-backup-1.20161110,
github-backup-1.20160922, github-backup-1.20160522, github-backup-1.20160511
(constraint from user target requires ==1.20160319)
trying: github-backup-1.20160319
trying: base-4.9.0.0/installed-4.9... (dependency of github-backup-1.20160319)
next goal: github (dependency of github-backup-1.20160319)
rejecting: github-0.15.0 (conflict: github-backup => github>=0.14.0 &&
<0.15.0)
rejecting: github-0.14.1, github-0.14.0 (conflict:
base==4.9.0.0/installed-4.9..., github => base>=4.7 && <4.9)
rejecting: github-0.13.2, github-0.13.1, github-0.13, github-0.12,
github-0.11.1, github-0.11.0, github-0.10.0, github-0.9, github-0.8,
github-0.7.4, github-0.7.3, github-0.7.2, github-0.7.1, github-0.7.0,
github-0.6.0, github-0.5.0, github-0.4.1, github-0.4.0, github-0.3.0,
github-0.2.1, github-0.2.0, github-0.1.2, github-0.1.1, github-0.1 (conflict:
github-backup => github>=0.14.0 && <0.15.0)
Dependency tree exhaustively searched.