Resolving dependencies... cabal: Could not resolve dependencies: next goal: gitit (user goal) rejecting: gitit-0.10.6.3, 0.10.6.2, 0.10.6.1, 0.10.6, 0.10.5.1, 0.10.5, 0.10.4, 0.10.3.1, 0.10.3, 0.10.2, 0.10.1.2, 0.10.1.1, 0.10.1, 0.10.0.2, 0.10.0.1, 0.10, 0.9.0.1 (global constraint requires ==0.9) trying: gitit-0.9 trying: xss-sanitize-0.3.5.5 (dependency of gitit-0.9) trying: attoparsec-0.13.0.0 (dependency of xss-sanitize-0.3.5.5) trying: transformers-0.3.0.0/installed-16a... (dependency of attoparsec-0.13.0.0) next goal: happstack-server (dependency of gitit-0.9) rejecting: happstack-server-7.4.4, 7.4.3, 7.4.2, 7.4.1, 7.4.0, 7.3.9, 7.3.8, 7.3.7, 7.3.6, 7.3.5, 7.3.4, 7.3.3, 7.3.2, 7.3.1, 7.3.0, 7.1.7.1, 7.1.7, 7.1.6, 7.1.5, 7.1.4, 7.1.3, 7.1.2, 7.1.1, 7.1.0, 7.0.7, 7.0.6, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0 (conflict: gitit => happstack-server>=6.6 && <6.7) rejecting: happstack-server-6.6.5, 6.6.4, 6.6.3, 6.6.2 (conflict: transformers==0.3.0.0/installed-16a..., happstack-server => transformers>=0.1.3 && <0.3) rejecting: happstack-server-6.5.7, 6.5.6, 6.5.4, 6.5.3, 6.5.2, 6.5.1, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.3.1, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.1.6, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.0, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 0.5.0.4, 0.5.0.3, 0.5.0.2, 0.5.0, 0.4.1, 0.3.3, 0.3.2, 0.3.1, 0.2.1, 0.1 (conflict: gitit => happstack-server>=6.6 && <6.7) Backjump limit reached (change with --max-backjumps).