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Today's Topics:
1. Need help setting up development environment via ghcup
(Sudaraka Wijesinghe)
----------------------------------------------------------------------
Message: 1
Date: Tue, 28 Jul 2020 13:41:33 +0530
From: Sudaraka Wijesinghe <[email protected]>
To: [email protected]
Subject: [Haskell-beginners] Need help setting up development
environment via ghcup
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"
Hi,
I have successfully installed `ghc` (8.8.4), `cabal-install` (3.2.0.0) via
`ghcup` (0.1.8) and created/build and several example projects without any
issues. In one of the projects I want to create a binary distribution
tarball. For this I tried using `runhaskell Setup.hs copy` (configure before
that) at one of the steps, and got the following error.
```
Configuring my-project-0.1.0.0...
Setup.hs: Encountered missing or private dependencies:
optparse-applicative ==0.15.*
```
`optparse-applicative` is a dependency of my project and it was installed by
`cabal build`.
I figured out this is because `cabal-install` and `runhaskell` (or `ghc` or
`ghc-pkg`) used different package DBs.
- `cabal-install` -> ~/.cabal/store/ghc-8.8.4/
- `runhaskell` -> ~/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/
Is there a was I can make both `cabal-install` and `runhaskell` use the same
package DB (or use both of them)?
[X-POST:
https://www.reddit.com/r/haskellquestions/comments/hydge5/need_help_setting_up_development_environment_via/]
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