[HOpenGL] Problem with Glut

[Mark Spezzano]

Hi 

Not sure if this will do the trick, but you might have _two copies_ of the package installed over the top of each other.

You often have this problem if there is a local copy for a specific user and a global, system-wide copy. 

If I remember correctly, I think I used the command  

ghc-pkg unregister <package name> 

to de-register a package (You might need to type in the full version number of the package that you wish to de-register)

You can use 

ghc-pkg list 

to see which packages are installed, first.

I don't know the "correct" way to go about installing packages, but I always do a

sudo cabal install --global <package name> 

That way I don't end up with local and global duplicates overlapping and cause me and ghc confusion.

Hope that helps.

Mark



On 20/05/2012, at 1:23 AM, ai00rea wrote:

>    Ambiguous module name `Graphics.UI.GLFW':
>      it was found in multiple packages: GLFW-b-0.1.0.2 GLFW-0.5.0.1
> Failed, modules loaded: none.
> 
> 
> 
> 
> 
> How can i remove one version. I tried reinstalling the Haskell Platform and
> deleting all files related to glfw, but useless... Please help me.
> 
> --
> View this message in context: http://haskell.1045720.n5.nabble.com/Problem-with-Glut-tp5689667p5710734.html
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