On Tue, Dec 21, 2010 at 03:28:22PM +0000, Aaron Gray wrote: > I have been trying to build the Scheme in 24 Hours on WikiBooks :- > > http://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours > > http://jonathan.tang.name/files/scheme_in_48/code/listing10.hs > > But I am getting an error :- > > scheme.hs:289:6: `noMsg' is not a (visible) method of class `Error' > > scheme.hs:290:6: > `strMsg' is not a (visible) method of class `Error'
I don't get that here. Perhaps you're using an old version of monads-fd (0.1.0.0). I'd recommend installing mtl-2.0.1.0 instead. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe