#8913: either bug or confusing error message mixing PolyKinds and TypeFamilies -------------------------------------+------------------------------------- Reporter: ghorn | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 7.8.1-rc2 checker) | Keywords: PolyKinds, Resolution: | TypeFamilies Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Comment (by ghorn): A workaround for this is to put the "GCat" class in its own module (without PolyKinds), and make orphan instances of it where needed (with PolyKinds). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8913#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler