Resolving dependencies... cabal: Could not resolve dependencies: next goal: elm-server (user goal) rejecting: elm-server-0.11.0.1, 0.11, 0.10.1, 0.9.0.2, 0.9.0.1, 0.9, 0.8, 0.7, 0.6.0.3, 0.6, 0.5.0 (global constraint requires ==0.4.0.4) trying: elm-server-0.4.0.4 trying: base-4.8.1.0/installed-4f7... (dependency of elm-server-0.4.0.4) trying: Elm-0.13 (dependency of elm-server-0.4.0.4) next goal: language-ecmascript (dependency of Elm-0.13) rejecting: language-ecmascript-0.17.0.1, 0.17 (conflict: Elm => language-ecmascript>=0.15 && <0.17) rejecting: language-ecmascript-0.16.2 (conflict: base==4.8.1.0/installed-4f7..., language-ecmascript => base>=4 && <4.8) trying: language-ecmascript-0.16.1 next goal: template-haskell (dependency of language-ecmascript-0.16.1) rejecting: template-haskell-2.10.0.0/installed-90e..., 2.10.0.0, 2.9.0.0 (conflict: language-ecmascript => template-haskell>=2.8 && <2.9) rejecting: template-haskell-2.8.0.0 (conflict: base==4.8.1.0/installed-4f7..., template-haskell => base==4.6.*) rejecting: template-haskell-2.7.0.0, 2.6.0.0, 2.5.0.0, 2.4.0.1, 2.4.0.0, 2.3.0.1, 2.3.0.0, 2.2.0.0 (conflict: language-ecmascript => template-haskell>=2.8 && <2.9) Backjump limit reached (change with --max-backjumps).