Questions about GHCup, an officially supported installer for Haskell, including the GHC compiler and key development tools.
Questions tagged [ghcup]
24 questions
6
votes
0 answers
GHCup installed with HLS (latest) doesn't work with VS Code HLS Extension for Intellisense
Context:
I run a Windows machine, and I've installed the Haskell Toolchain using GHCup. Initially, I selected "Y" to all the options mentioned during setup. Stack, Cabal, ghc (8.10.7 - recommended) worked and were/are on path (installation…

nassqra
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5
votes
1 answer
ghcup install: Permission denied when writing to ~/.ghcup/cache directory
I'm attempting to install ghcup on Ubuntu with:
curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
using the default options (prepend to .bashrc, don't install HLS, dont install Stack).
The problem is that I'm receiving a…

Austin T
- 121
- 3
4
votes
1 answer
GHCi cannot find documentations
I installed Haskell on Windows using ghcup. While using GHCi, ":doc name" answers back with an error message. Some examples are:
ghci> :doc (++)
ghc-9.2.5.exe: Can't find any documentation for GHC.Base.
This is probably because the module was…

aaay
- 67
- 5
4
votes
1 answer
Installing GHCup vs vanilla GHC for haskell
I want to run Haskell programs(Mostly compiling binaries) but I don't need the other, dare I say, bloat along with the compiler. I just want to install the compiler and start writing code. Just like you would do with something like C/C++. You…

Tony
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- 9
3
votes
1 answer
How to do unattended Haskell installation?
I've tried the following command curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh -s install ghcup ghc cabal stack hls but it just runs the standard interactive installer.

Richard
- 14,798
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3
votes
0 answers
Troubles getting the Haskell extension for VS Code to work
I am using VS Code 1.68.1 on Windows 10 and have installed the Haskell language support plugin. I tried to install ghcup but the installation script just fails with no error message and the IRC channel #ghcup wasn't able to help so I've given up on…

Motorhead
- 928
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3
votes
3 answers
How do I fix this error when installing GHC with ghcup?
I'm trying to install GHC with ghcup on an windows laptop running an Ubuntu subsystem. I keep getting the same error and I don't even really know what is going wrong. Here are the error messages:
[ Info ] verifying digest of:…

NFTLevi
- 43
- 1
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2
votes
1 answer
can't install ghc in nixos
I installed minimal edition of nixos on vm,
and then install some pkgs like i3, firefox, code, ...
but
when i want to install ghc compiler of haskell i encounter with a problem
i used ghcup from its offical site for installing haskell ecosystem
it…

xmoooz
- 411
- 5
- 8
1
vote
1 answer
Unknown architecture when attempting to install GHCup on Red Hat linux
I would like to install Cabal on my POWER8 RHEL 7.9 system.
Instructions here and then here suggested to run this command.
curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
Upon running this I answered all the questions with…

Morag Hughson
- 7,255
- 15
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1
vote
2 answers
How to get a working Haskell VS Code setup with ghcup?
I installed Haskell via ghcup
I have installed the HLS via ghcup
I have ghcup set 9.6.1
I have the VS Code extension: https://marketplace.visualstudio.com/items?itemName=haskell.haskell
When I open the project in VS Code I get the following…

Anentropic
- 32,188
- 12
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1
vote
1 answer
Can't update ghc on Windows
Trying to update ghcup with ghc (ghcup install ghc 9.4.3) results in an error:
[ Warn ] New cabal version available. To upgrade, run 'ghcup install cabal 3.8.1.0'
[ Info ] verifying digest of: gs.exe
[ Info ] downloading:…

orsnmkhl
- 11
- 1
1
vote
1 answer
`Haskell` extension for `VSCode` not working on `Linux`
I installed ghcup and:
Stack 2.9.1
HLS 1.8.0
cabal 3.6.2
GHC 9.2.5
All of them are the recommended versions(I verified it using ghcup tui). Then I installed the Haskell extension in VSCode. Unfortunately, it doesn't work. I get syntax highlighting…

Kotaka Danski
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1
vote
2 answers
How do I fix this error when tring to install ghc from ghcub?
Here is the error message:
[ Info ] Merging file tree from "C:\ghcup\tmp\ghcup-d5bf0fe7341a" to "C:\ghcup\ghc\8.10.7"
[ Warn ] Couldn't remove build dir C:\ghcup\tmp\ghcup-d5bf0fe734as:…

ali_r
- 11
- 5
1
vote
0 answers
ghcup install fails when trying to install cabal
When trying to install ghcup using curl from the official page, it throws the following error.
curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
Ubuntu:
Debug: Identified Platform as: Linux Ubuntu, 20.04
Debug: last access was…

Orelvis15
- 306
- 4
- 11
0
votes
0 answers
curl: (60) error on installation of GHCup for Haskell on Mac High Sierra 10.13.6
I am a beginner looking to learn basics of Haskell before my first term at university. I recently installed GHCup for Haskell (mac) using the terminal window command
curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
However,…

metanetfuture
- 1
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