Edward, What version of the packages are you using? Can you give the output of:
ghc-pkg list|grep failure Michael On Thu, Dec 31, 2009 at 7:11 AM, Edward Z. Yang <[email protected]> wrote: > Excerpts from Alexander Dunlap's message of Thu Dec 31 00:06:58 -0500 2009: > > Why are you importing both Control.Failure and Control.Monad.Failure > > when the latter just re-exports the former? Are you using the latest > > versions of the two packages? Try importing just > > Control.Monad.Failure.MTL; that provides the MTL failure instances and > > also re-exports Control.Failure. > > That's correct. I imported both when Control.Monad.Failure.MTL failed > to expose try: > > ezy...@javelin:~/Dev/wizard$ ghci > Prelude> :m +Control.Monad.Failure.MTL > Prelude Control.Monad.Failure.MTL> :t try > > <interactive>:1:0: Not in scope: `try' > > Which, doesn't really seem like it should be the case. > > Cheers, > Edward > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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