All Questions
111 questions
0
votes
1
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39
views
"Could not find module ‘GHCi.GhcApiCompat’." which installing `haskell-dap ghci-dap`
Below are my ghcup config -
I've I've created haskell project using stack with command stack new stack-hls-dbg-demo.
I then updated snapshot.url as below so that it uses ghc-9.10.1-
snapshot:
url: ...
- 10.3k
1
vote
1
answer
687
views
Error occured while (re-)installing GHC and setting up the VSCode Haskell Plugin
I was trying to setup the Haskell Plugin for VSCode and I had two seperate problems while trying.
First: The original error I faced while setting up the Haskell Plugin in VSCode was:
HLS does not ...
- 13
2
votes
1
answer
183
views
How do I get an error and warning count from GHC/Cabal/Stack?
If I run dotnet build in PowerShell to build a .NET project, at the end of the output, I see a message that tells me how many warnings and errors the compiler generated while building my project. I ...
- 697
1
vote
0
answers
159
views
Installing Haskell Stack builds and artifacts or GHC to a different drive than C:
Is there any good methods to install Haskell on a different drive than C: , such that when I run stack buildand stack test etc., it will not install a large number of files in C:\Users\myuser\AppData\...
- 647
1
vote
0
answers
41
views
Cross-Compile Yesod app for aarch64 system on x86_64
as can be inferred from the title my goal is to deploy my Yesod app to an aarch64 Ubuntu server (using Keter). For this I would like to do compilation on my x86_64 debian machine, where I also develop ...
- 13
2
votes
0
answers
146
views
How to suppress warnings from external packages?
My stack build shows warning from external packages, like:
happy > /tmp/stack-d6caed253e9f21bf/happy-1.20.0/src/ProduceGLRCode.lhs:224:12: warning: [-Wincomplete-uni-patterns]
...
- 24.8k
5
votes
1
answer
2k
views
ghc-9.2.5 is not supported by haskell plugin in vscode but I can't use other ghc versions
I'm new to Haskell and I am trying to setup haskell plugin in vscode using official haskell plugin but I came with up some problems with setting up code hinting and syntax recognition of hls plugin.
I ...
- 51
4
votes
1
answer
827
views
XMonad crashing: how to do proper build with Stack and custom build script?
OS: linux gentoo 6.0.9
I am attempting to build a custom version of XMonad using Stack and a build script I wrote, which is closely based on this one here.
build.sh:
#!/bin/sh
SRC_DIR=$HOME/.config/...
- 477
0
votes
0
answers
136
views
How to fix InvalidAbsFile error from stack build
I seem to be getting a peculiar problem which is hard to even search up online.
I'm using stack and have already created a project from my professor but when I try to run it with stack build or stack ...
- 25
1
vote
1
answer
130
views
What happens when a deprecated optimization flag is passed to GHC?
In my stack configuration i have a list of optimization flags that i pass to GHC normally, but i tried the latest version of GHC which deprecated one of them. During compilation GHC gave me a warning ...
- 385
0
votes
0
answers
1k
views
Using VSCode with Haskell, ghcup and stack - hls crashes with newer versions of ghc
I am using VSCode with the Haskell extension. I have ghcup installed with the following installed:
Stack 2.7.5
HLS 1.7.0.0
Cabal 3.6.2.0
GHC 9.0.2 (set)
GHC 8.10.7
If I have a stack.yaml with lts-18....
- 75
3
votes
1
answer
2k
views
How can i update the version of my GHC for my stack project? ERROR: ghcide compiled by GHC 8.10 failed to load packages:haskell-language-server-8.10.7
I have created a stack haskell project a few months ago and finished it then. I wanted to add and fix a few issues it has, but when i tried opening the .hs file on vs code (visual studio code) i got ...
- 133
1
vote
0
answers
235
views
Sanity check failed when installing Haskell Stack on Windows
I've been trying to install Haskell Stack on Windows, but when I try this command:
>stack setup --resolver lts-18.26
the following error occurs:
The GHC located at C:\Users\Atanasia\AppData\Local\...
- 11
4
votes
1
answer
467
views
Cannot profile a build with stack LTS 19.2 (GHC 9.0.2)
I am trying to build a profilable executable with stack build --profile. stack build, stack test, and stack ghci all work correctly. (Full repo for reference)
I get many errors like the following:
...
- 4,127
1
vote
1
answer
85
views
Why can't GHC find module `Language.Java.Inline.Plugin'
I am trying to stack build using
I am importing inline-java in the extra-deps in stack.yaml, like this:
extra-deps:
- inline-java-0.8.4@sha256:...
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