[Haskell-beginners] import Control.Lens.Tutorial

[Dan Phillips]

Awesome. That works. Thanks a lot.

2016-08-05 0:32 GMT+10:00 adv_zxy <frefreak.zxy at gmail.com>:

> 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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