On Sat, Nov 29, 2008 at 11:22 PM, Belka <[EMAIL PROTECTED]> wrote: > > Hello! > > ----------------------------START---------------------------------- > $ sudo runghc Setup configure --user > Configuring HCL-1.2... > > $ sudo runghc Setup build > Preprocessing library HCL-1.2... > Preprocessing executables for HCL-1.2... > Building HCL-1.2... > > HCL.hs:302:7: > Could not find module `System.Random': > it is a member of package random-1.0.0.1, which is hidden > > $ sudo ghc-pkg expose random > Saving old package config file... done. > Writing new package config file... done. > > $ sudo runghc Setup configure --user > Configuring HCL-1.2... > > $ sudo runghc Setup build > Preprocessing library HCL-1.2... > Preprocessing executables for HCL-1.2... > Building HCL-1.2... > > HCL.hs:302:7: > Could not find module `System.Random': > it is a member of package random-1.0.0.1, which is hidden > > ---------------------THE-END---------------------------------------- > > Perhaps, i'm 1000th, who asks how to solve this. Sorry that didn't search > better, but it's really tiring for a newby. :-( > [ http://www.haskell.org/haskellwiki/Upgrading_packages/Updating_to_GHC_6.8 > Here ] found something, which maybe called "a gentle explaination" of what's > going on. I have ghc ver: 6.8.2, base ver: 3.0.1.0. > > So there are 2 questions of mine: > (1) Is there any centralized and well organized Haskell Knowledge Base, > where it would be much easier to find solutions for "popular" problems? > Anybody, please, your recommendations. > (2) As for the topic: the only option for me would be obtaining older GHC > (base?) - is that correct? So that require me reinstalling every Haskell > package I have installed so far? > > Thanks in advance. > -- > View this message in context: > http://www.nabble.com/%22Could-not-find-module-...-which-is-hidden%22-problem-tp20742582p20742582.html > Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com. > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe >
Is the "random" package in the build-depends of your cabal file? If not, that's why it's hidden. Cabal hides all of the packages that aren't listed in build-depends so that you can't accidentally depend on something that you don't list. Hope that helps. Alex _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
