Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: git-annex (user goal)
rejecting: git-annex-6.20161118, git-annex-6.20161111, git-annex-6.20161031,
git-annex-6.20161027, git-annex-6.20161012, git-annex-6.20160923,
git-annex-6.20160907, git-annex-6.20160808 (constraint from user target
requires ==6.20160619)
trying: git-annex-6.20160619
trying: base-4.9.0.0/installed-4.9... (dependency of git-annex-6.20160619)
trying: persistent-2.6 (dependency of git-annex-6.20160619)
next goal: esqueleto (dependency of git-annex-6.20160619)
rejecting: esqueleto-2.4.3 (conflict: persistent==2.6, esqueleto =>
persistent>=2.1.1.7 && <2.3)
rejecting: esqueleto-2.4.2, esqueleto-2.4.1, esqueleto-2.4.0, esqueleto-2.3.0,
esqueleto-2.2.12, esqueleto-2.2.11, esqueleto-2.2.10, esqueleto-2.2.9,
esqueleto-2.2.8, esqueleto-2.2.7, esqueleto-2.2.6, esqueleto-2.2.5,
esqueleto-2.2.4, esqueleto-2.2.3, esqueleto-2.2.2, esqueleto-2.2.1,
esqueleto-2.2, esqueleto-2.1.3, esqueleto-2.1.2.3 (conflict:
base==4.9.0.0/installed-4.9..., esqueleto => base>=4.5 && <4.9)
rejecting: esqueleto-2.1.2.2, esqueleto-2.1.2.1, esqueleto-2.1.2,
esqueleto-2.1.1, esqueleto-2.1.0, esqueleto-2.0.3, esqueleto-2.0.2,
esqueleto-2.0.1, esqueleto-2.0.0, esqueleto-1.4.4, esqueleto-1.4.3,
esqueleto-1.4.2, esqueleto-1.4.1.3, esqueleto-1.4.1.2, esqueleto-1.4.1,
esqueleto-1.4, esqueleto-1.3.12, esqueleto-1.3.11, esqueleto-1.3.10,
esqueleto-1.3.9, esqueleto-1.3.8, esqueleto-1.3.7, esqueleto-1.3.6,
esqueleto-1.3.5, esqueleto-1.3.4.6 (conflict: base==4.9.0.0/installed-4.9...,
esqueleto => base>=4.5 && <4.8)
rejecting: esqueleto-1.3.4.5, esqueleto-1.3.4.4, esqueleto-1.3.4.3,
esqueleto-1.3.4.2, esqueleto-1.3.4, esqueleto-1.3.3, esqueleto-1.3.2,
esqueleto-1.3.1, esqueleto-1.3, esqueleto-1.2.4, esqueleto-1.2.3,
esqueleto-1.2.2.1, esqueleto-1.2.2, esqueleto-1.2.1, esqueleto-1.2,
esqueleto-1.0.8, esqueleto-1.0.7, esqueleto-1.0.6, esqueleto-1.0.5,
esqueleto-1.0.3, esqueleto-1.0.2, esqueleto-1.0.1, esqueleto-1.0,
esqueleto-0.2.9, esqueleto-0.2.8, esqueleto-0.2.7 (conflict:
base==4.9.0.0/installed-4.9..., esqueleto => base>=4.5 && <4.7)
rejecting: esqueleto-0.2.6, esqueleto-0.2.5, esqueleto-0.2.4, esqueleto-0.2.3,
esqueleto-0.2.2, esqueleto-0.2.1, esqueleto-0.2, esqueleto-0.1 (conflict:
base==4.9.0.0/installed-4.9..., esqueleto => base==4.5.*)
rejecting: esqueleto-1.4.1.1 (conflict: base==4.9.0.0/installed-4.9...,
esqueleto => base>=4.5 && <4.8)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).