Resolving dependencies... cabal: Could not resolve dependencies: next goal: yesod-comments (user goal) rejecting: yesod-comments-0.9.2, 0.9.1 (global constraint requires ==0.9.0) trying: yesod-comments-0.9.0 trying: directory-1.2.2.0/installed-258... (dependency of yesod-comments-0.9.0) next goal: yesod-markdown (dependency of yesod-comments-0.9.0) rejecting: yesod-markdown-0.10.0, 0.9.4, 0.9.3.1, 0.9.3, 0.9.2, 0.9.1, 0.9.0 (conflict: yesod-comments => yesod-markdown>=0.8 && <0.9) trying: yesod-markdown-0.8.5 next goal: temporary (dependency of yesod-markdown-0.8.5) rejecting: temporary-1.2.0.3, 1.2.0.2 (conflict: yesod-markdown => temporary<1.2.0.2) rejecting: temporary-1.2.0.1, 1.2, 1.1.2.5, 1.1.2.4, 1.1.2.3 (conflict: directory => filepath==1.4.0.0/installed-8fe..., temporary => filepath>=1.1 && <1.4) rejecting: temporary-1.1.2.2, 1.1.2.1, 1.1.2, 1.1.1 (conflict: directory => filepath==1.4.0.0/installed-8fe..., temporary => filepath>=1.1 && <1.3) rejecting: temporary-1.1, 1.0 (conflict: directory => filepath==1.4.0.0/installed-8fe..., temporary => filepath>=1.1 && <1.2) Backjump limit reached (change with --max-backjumps).