[Haskell-beginners] import Control.Lens.Tutorial

[adv_zxy]

Have you tried 'stack exec -- ghci'? This way ghci should be able to find
the packages stack installed.

On Thu, Aug 4, 2016, 10:27 PM Dan Phillips <dan at dp.id.au> wrote:

> Hi all
>
> I'm trying to follow this tutorial about lenses:
>
>
> https://hackage.haskell.org/package/lens-tutorial-1.0.1/docs/Control-Lens-Tutorial.html
>
>
> Right at the top of the tutorial,it says do this in ghci:
>
> import Control.Lens.Tutorial
>
>
> I tried that, but I got an error: "Could not find module
> `Control.Lens.Tutorial'"
>
> So I tried this:
>
> D:\Sync\src\tutorials> stack install lens-tutorial
> Run from outside a project, using implicit global project config
> Using resolver: lts-6.9 from implicit global project's config file:
> C:\Users\dan\AppData\Roaming\stack\global-project\stack.yaml
> lens-tutorial-1.0.1: download
> lens-tutorial-1.0.1: configure
> lens-tutorial-1.0.1: build
> lens-tutorial-1.0.1: copy/register
>
> I'm not exactly sure what that did, but it looked promising. However, I
> still get the same error in ghci as before when I do the import.
>
> My question is, what do I need to do to get the import statement working
> in ghci so I can follow the tutorial? I would be grateful for any guidance.
> Thanks.
>
> Regards
> Dan Phillips
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>
-- 

Xiangyu Zhu
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