Resolving dependencies... cabal: Could not resolve dependencies: trying: base-4.9.0.0/installed-4.9... (dependency of fluent-logger-conduit-0.1.0.0) next goal: msgpack (dependency of fluent-logger-conduit-0.1.0.0) rejecting: msgpack-1.0.0 (conflict: fluent-logger-conduit => msgpack>=0.7.1 && <0.8) trying: msgpack-0.7.2.5 next goal: template-haskell (dependency of msgpack-0.7.2.5) rejecting: template-haskell-2.11.0.0/installed-2.1..., template-haskell-2.11.0.0, template-haskell-2.10.0.0, template-haskell-2.9.0.0 (conflict: msgpack => template-haskell>=2.4 && <2.9) rejecting: template-haskell-2.8.0.0 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base==4.6.*) rejecting: template-haskell-2.7.0.0 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base==4.5.*) rejecting: template-haskell-2.6.0.0 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base==4.4.*) rejecting: template-haskell-2.5.0.0 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base==4.3.*) rejecting: template-haskell-2.4.0.1 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base==4.2.*) rejecting: template-haskell-2.4.0.0 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base>=3 && <4.3) rejecting: template-haskell-2.3.0.1, template-haskell-2.3.0.0, template-haskell-2.2.0.0 (conflict: msgpack => template-haskell>=2.4 && <2.9) Dependency tree exhaustively searched.