Resolving dependencies... cabal: Could not resolve dependencies: next goal: yesod-dsl (user goal) rejecting: yesod-dsl-0.2.0, 0.1.1.24, 0.1.1.23, 0.1.1.22, 0.1.1.21, 0.1.1.20, 0.1.1.19, 0.1.1.18, 0.1.1.17, 0.1.1.16, 0.1.1.15, 0.1.1.14, 0.1.1.13, 0.1.1.12, 0.1.1.11, 0.1.1.10, 0.1.1.9, 0.1.1.8 (global constraint requires ==0.1.1.7) trying: yesod-dsl-0.1.1.7 trying: base-4.8.1.0/installed-4f7... (dependency of yesod-dsl-0.1.1.7) trying: text-1.2.1.3 (dependency of yesod-dsl-0.1.1.7) next goal: shakespeare-text (dependency of yesod-dsl-0.1.1.7) rejecting: shakespeare-text-1.1.0 (conflict: yesod-dsl => shakespeare-text>=1.0 && <1.1) trying: shakespeare-text-1.0.2 trying: template-haskell-2.10.0.0/installed-90e... (dependency of shakespeare-text-1.0.2) next goal: shakespeare (dependency of shakespeare-text-1.0.2) rejecting: shakespeare-2.0.7, 2.0.6, 2.0.5, 2.0.4.1, 2.0.4, 2.0.3, 2.0.2.2, 2.0.2.1, 2.0.2, 2.0.1.2, 2.0.1.1, 2.0.1, 2.0.0.3, 2.0.0.1, 2.0.0 (conflict: shakespeare-text => shakespeare>=1.0 && <1.3) rejecting: shakespeare-1.2.1.1 (conflict: base==4.8.1.0/installed-4f7..., shakespeare => base>=4.4 && <4.8) rejecting: shakespeare-1.2.1 (conflict: base==4.8.1.0/installed-4f7..., shakespeare => base>=4.6 && <4.8) rejecting: shakespeare-1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2.0, 1.0.5.1, 1.0.5 (conflict: base==4.8.1.0/installed-4f7..., shakespeare => base>=4 && <4.8) rejecting: shakespeare-1.0.4, 1.0.3.1 (conflict: base==4.8.1.0/installed-4f7..., shakespeare => base>=4.5 && <4.8) rejecting: shakespeare-1.0.3, 1.0.2, 1.0.1.4, 1.0.1.3, 1.0.1.2 (conflict: text==1.2.1.3, shakespeare => text>=0.7 && <0.12) rejecting: shakespeare-1.0.1.1, 1.0.1, 1.0.0.2, 1.0.0.1, 1.0.0 (conflict: template-haskell==2.10.0.0/installed-90e..., shakespeare => template-haskell<2.8) rejecting: shakespeare-0.11, 0.10.3.1, 0.10.3, 0.10.2, 0.10.1.1, 0.10.1, 0.10.0 (conflict: shakespeare-text => shakespeare>=1.0 && <1.3) Backjump limit reached (change with --max-backjumps).