[Haskell-cafe] "Could not find module ... which is hidden" problem

Don Stewart dons at galois.com
Sun Nov 30 02:42:34 EST 2008

> 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.

Yes, looks like he was using HCL 1.2 -- well spotted!

Try building HCL 1.3


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