Visual Haskell: Could not find module `Control.Monad.Writer'
Hi all, I am playing around with Visual Haskell, V0.1 (which really is great stuff!). In the main module I wrote the following import: import Control.Monad.Writer for which I get the error message: Could not find module `Control.Monad.Writer': use -v to see a list of the files searched for I use the GHCOptions: -fglasgow-exts -fallow-overlapping-instances. Is this a bug in Visual Haskell or what's wrong here? Thanks, Bernd
Hello Bernd, Monday, January 30, 2006, 2:29:36 PM, you wrote: BH> Could not find module `Control.Monad.Writer': use -v to see a list BH> of the files searched for it's the GHC's way to say "--make required here" ;) -- Best regards, Bulat mailto:bulatz@HotPOP.com
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
participants (3)
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Ben Rudiak-Gould -
Bernd Holzmüller -
Bulat Ziganshin