Resolving dependencies... cabal: Could not resolve dependencies: next goal: hxournal (user goal) rejecting: hxournal-0.6.6.1 (global constraint requires ==0.6.6) trying: hxournal-0.6.6 trying: double-conversion-2.0.1.0 (dependency of hxournal-0.6.6) next goal: xournal-builder (dependency of hxournal-0.6.6) rejecting: xournal-builder-0.1.1.1, 0.1.1, 0.1.0.2, 0.1.0.1, 0.1.0.0, 0.1 (conflict: double-conversion==2.0.1.0, xournal-builder => double-conversion==0.2.*) Backjump limit reached (change with --max-backjumps).