#9193: GHC panic usinig HList and Lens -------------------------------+------------------------------------------- Reporter: maxigit | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: fixed | Keywords: Operating System: | Architecture: x86 Unknown/Multiple | Difficulty: Easy (less than 1 hour) Type of failure: GHCi crash | Blocked By: Test Case: | Related Tickets: Blocking: | -------------------------------+------------------------------------------- Comment (by maxigit): It's definitely a duplicate of #8225 : adding {{{ import GHC.TypeLits }}} solves the problem. This workaround should be enough until I can get 7.8.* working. Thank you very much for your really quick answers. Max -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9193#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler