Resolving dependencies... cabal: Could not resolve dependencies: trying: tighttp-0.0.0.9 (user goal) trying: papillon-0.1.0.0 (dependency of tighttp-0.0.0.9) trying: template-haskell-2.10.0.0/installed-90e... (dependency of papillon-0.1.0.0) trying: pretty-1.1.2.0/installed-293... (dependency of template-haskell-2.10.0.0/installed-90e...) next goal: time (dependency of tighttp-0.0.0.9) rejecting: time-1.5.0.1/installed-c20..., 1.5.0.1, 1.5 (conflict: tighttp => time==1.4.*) rejecting: time-1.4.2, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4 (conflict: pretty => deepseq==1.4.1.1/installed-8fb..., time => deepseq>=1.1 && <1.4) rejecting: time-1.3, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2, 1.1.4, 1.1.3, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2.0, 1.0 (conflict: tighttp => time==1.4.*) Backjump limit reached (change with --max-backjumps).