[Haskell-beginners] Data-List-Utils
CEO'Riley
ceoriley at gmail.com
Wed Oct 19 03:15:53 CEST 2011
Hi David,
Thanks for responding. I'm out here at the hackage.haskell.org site and
performed the search. I guess my first question here would be "what is
missing"? Does this mean something is missing? I see it for a lot of the
components (functions) of Data.List.Utils.
Regards,
CEO'Riley
Charles E. O'Riley Jr.
-----Original Message-----
From: David McBride [mailto:toad3k at gmail.com]
Sent: Tuesday, October 18, 2011 7:38 PM
To: ceoriley at gmail.com
Cc: beginners at haskell.org
Subject: Re: [Haskell-beginners] Data-List-Utils
Data.List.Utils is part of the missingh library. If your app can't find it,
it is probably not installed. cabal install missingh.
To find out where a random import comes from, go to hackage.haskell.org,
click on hayoo, and search for "Data.List.Utils".
The ambiguous module name is totally different and doesn't happen very often
anymore. Monads-fd used to be an improved version of mtl, and it exported
roughly the same interface, but monads-fd is now deprecated and shouldn't be
used. Sometimes when you load a file it ends up choosing it anyways,
because it has to choose something. You can avoid that by typing ghci
-hide-package=monads-fd. Alternatively you can use ghc-pkg hide to hide it
permanently, so that nothing tries to use that, that should work.
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