[Haskell-beginners] Stack doesn't find downloaded module

[Norbert Melzer]

Hello Miguel!

On Tue, Jul 23, 2019 at 7:01 AM Miguel Angel Ordoñez Silis <
mianorsi at ciencias.unam.mx> wrote:

> stack install multiset.
>

`stack install` is meant to install packages that result in a executable
program, not for libraries.


> It was supposedly successfully installed but when I try to import it stack
> says it couldn't find it ('Could not find module ‘Data.MultiSet’). I've
> tried reading haskellstack.org's documentation but I've not been able to
> find a solution.
>

You need to specify `multiset` as a dependency in your `package.yaml` of
your project.


>
> Well, thanks in advance for your help
>
> Mike
>
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