Resolving dependencies... cabal: Could not resolve dependencies: trying: base-4.9.0.0/installed-4.9... (dependency of yesod-dsl-0.1.1.13) trying: text-1.2.2.1 (dependency of yesod-dsl-0.1.1.13) next goal: shakespeare-text (dependency of yesod-dsl-0.1.1.13) rejecting: shakespeare-text-1.1.0 (conflict: yesod-dsl => shakespeare-text>=1.0 && <1.1) trying: shakespeare-text-1.0.2 trying: template-haskell-2.11.0.0/installed-2.1... (dependency of shakespeare-text-1.0.2) next goal: shakespeare (dependency of shakespeare-text-1.0.2) rejecting: shakespeare-2.0.11.2, shakespeare-2.0.11.1, shakespeare-2.0.11, shakespeare-2.0.10, shakespeare-2.0.9, shakespeare-2.0.8.2, shakespeare-2.0.8.1, shakespeare-2.0.8, shakespeare-2.0.7, shakespeare-2.0.6, shakespeare-2.0.5, shakespeare-2.0.4.1, shakespeare-2.0.4, shakespeare-2.0.3, shakespeare-2.0.2.2, shakespeare-2.0.2.1, shakespeare-2.0.2, shakespeare-2.0.1.2, shakespeare-2.0.1.1, shakespeare-2.0.1, shakespeare-2.0.0.3, shakespeare-2.0.0.1, shakespeare-2.0.0 (conflict: shakespeare-text => shakespeare>=1.0 && <1.3) rejecting: shakespeare-1.2.1.1 (conflict: base==4.9.0.0/installed-4.9..., shakespeare => base>=4.4 && <4.8) rejecting: shakespeare-1.2.1 (conflict: base==4.9.0.0/installed-4.9..., shakespeare => base>=4.6 && <4.8) rejecting: shakespeare-1.2.0.4, shakespeare-1.2.0.3, shakespeare-1.2.0.2, shakespeare-1.2.0.1, shakespeare-1.2.0, shakespeare-1.0.5.1, shakespeare-1.0.5 (conflict: base==4.9.0.0/installed-4.9..., shakespeare => base>=4 && <4.8) rejecting: shakespeare-1.0.4, shakespeare-1.0.3.1 (conflict: base==4.9.0.0/installed-4.9..., shakespeare => base>=4.5 && <4.8) rejecting: shakespeare-1.0.3, shakespeare-1.0.2, shakespeare-1.0.1.4, shakespeare-1.0.1.3, shakespeare-1.0.1.2 (conflict: text==1.2.2.1, shakespeare => text>=0.7 && <0.12) rejecting: shakespeare-1.0.1.1, shakespeare-1.0.1, shakespeare-1.0.0.2, shakespeare-1.0.0.1, shakespeare-1.0.0 (conflict: template-haskell==2.11.0.0/installed-2.1..., shakespeare => template-haskell<2.8) rejecting: shakespeare-0.11, shakespeare-0.10.3.1, shakespeare-0.10.3, shakespeare-0.10.2, shakespeare-0.10.1.1, shakespeare-0.10.1, shakespeare-0.10.0 (conflict: shakespeare-text => shakespeare>=1.0 && <1.3) Dependency tree exhaustively searched.