Thank you! I can reproduce it. It is a truly egregious error. It will be fixed. Simon | -----Original Message----- | From: glasgow-haskell-users-bounces@haskell.org [mailto:glasgow-haskell-users- | bounces@haskell.org] On Behalf Of Malte Sommerkorn | Sent: 30 September 2010 15:55 | To: Simon Peyton-Jones | Cc: glasgow-haskell-users@haskell.org | Subject: Re: GHC 7.0.1 rc1: Could not deduce (Typeable a) from the context (Typeable | a, …) | | Simon Peyton-Jones wrote: | > Oh dear, that really is quite a strange error message. Something is | > definitely wrong. Can you please make a ticket for it, and include | > instructions on how to reproduce it? | | Done: http://hackage.haskell.org/trac/ghc/ticket/4355 | | > I gather that it depends on other packages that themselves needed changes, | > so reproduction might not be entirely easy? | | I've attached a module to the bug report that triggers the problem and only | depends on base and mtl, so that should be fairly easy to reproduce. | | Regards | Malte | | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users@haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users