[Haskell] Re: Visual Haskell: Could not find module `Control.Monad.Writer'

Replying to an old thread... Bernd Holzmüller wrote:

Could not find module `Control.Monad.Writer': use -v to see a list of the files searched for

I just installed Visual Haskell and ran into the same problem, and the solution I found was to right click on "References" in the project and add the mtl package. I also had to add the haskell98 package to get Happy-produced source code to work (even though Happy was called with --ghc). -- Ben