Resolving dependencies...
cabal: Could not resolve dependencies:
trying: toktok-0.5 (user goal)
trying: gf-3.7 (dependency of toktok-0.5)
trying: haskeline-0.7.2.1/installed-0a4... (dependency of gf-3.7)
trying: process-1.2.3.0/installed-f02... (dependency of gf-3.7)
next goal: progression (dependency of toktok-0.5)
rejecting: progression-0.5.0.2, 0.5.0.1 (conflict:
process==1.2.3.0/installed-f02..., progression => process>=1.0 && <1.2)
rejecting: progression-0.5 (conflict: haskeline =>
directory==1.2.2.0/installed-258..., progression => directory>=1.0 && <1.2)
rejecting: progression-0.4, 0.3, 0.2, 0.1 (conflict: haskeline =>
filepath==1.4.0.0/installed-8fe..., progression => filepath>=1.1 && <1.2)
Backjump limit reached (change with --max-backjumps).