missing Control.Monad.State

[Alfonso Acosta]

It seems you haven't the mtl package installed.

You can either get a custom package for your OS distribution or grab
it from hackage.



On Nov 11, 2007 2:29 PM, Hal Daume III <hal at cs.utah.edu> wrote:
> Hi all --
>
> Something weird just happened and I feel bad asking on the list for help
> (because it's a dumb question), but I've racked my brains and can't
> figure it out.
>
> I've been happily using ghc for some time now.  My current machine died,
> and the computer folks gave me a new one.  Both my old and new were
> running ubuntu.  The new machine came in and I apt-get installed ghc6
> ghc6-prof ghc6-docs haskell-mode ghc6-libsrc.  But when I try to run ghc
> on a module that uses Control.Monad.State, I get:
>
>
> ~ ghc --make -fglasgow-exts Main.hs -o hbc
> Core.hs:24:7:
>      Could not find module `Control.Monad.State':
>        Use -v to see a list of the files searched for.
>
> If I say -v, I get:
>
> Glasgow Haskell Compiler, Version 6.6, for Haskell 98, compiled by GHC
> version 6.6
> Using package config file: /usr/lib/ghc-6.6/package.conf
> wired-in package base mapped to base-2.0
> wired-in package rts mapped to rts-1.0
> wired-in package haskell98 mapped to haskell98-1.0
> wired-in package template-haskell mapped to template-haskell-2.0
> Hsc static flags: -static
> *** Chasing dependencies:
> Chasing modules from: Main.hs
>
> Core.hs:24:7:
>      Could not find module `Control.Monad.State':
>        locations searched:
>          Control/Monad/State.hs
>          Control/Monad/State.lhs
> *** Deleting temp files:
> Deleting:
> *** Deleting temp dirs:
> Deleting:
>
>
> Looking in /usr/lib/ghc-6.6/package.conf, I don't find any mention of
> Control.Monad.State (or anything with "State") for that matter.  A
> "find" in /usr/lib/ghc-6.6 doesn't turn up anything called State, either.
>
> I presume that I'm doing something incredibly stupid, but I'd appreciate
> a bit of help!
>
> Thanks!
>
>   - Hal
>
>
> --
>   Hal Daume III --- me AT hal3 DOT name  |  http://hal3.name
>   "Arrest this man, he talks in maths."  |  http://nlpers.blogspot.com
>
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