Server cannot find hls-qualify-improted-names-plugin .so file (missing from ghcup install?)

[tslawler]

Your environment

Which OS do you use?
Ubuntu 22.04
Which version of GHC do you use and how did you install it?
9.4.8 from ghcup
How is your project built (alternative: link to the project)?
cabal

Which LSP client (editor/plugin) do you use?
VS Code Haskell extension
Which version of HLS do you use and how did you install it?
v2.7.0.0 via ghcup
Have you configured HLS in any way (especially: a hie.yaml file)?
No

What's wrong?

Trying to run HLS gives an error that it cannot find a shared library libHShaskell-language-server-2.7.0.0-l-hls-qualify-imported-names-plugin-(...)-ghc9.4.8.so. And indeed if I look in ~/.ghcup/hls/2.7.0.0/lib/haskell-language-server-2.7.0.0/lib/9.4.8/, there is no such file.

Just to be sure, I checked the 9.8.2 directory and it's also not in there.

Debug information

$ haskell-language-server-wrapper --debug
No 'hie.yaml' found. Try to discover the project type!
Run entered for haskell-language-server-wrapper(haskell-language-server-wrapper) Version 2.7.0.0 x86_64 ghc-9.2.8
Current directory: /home/thomas/Projects/hlox
Operating system: linux
Arguments: ["--debug"]
Cradle directory: /home/thomas/Projects/hlox
Cradle type: Cabal

Tool versions found on the $PATH
cabal: 3.10.2.1
stack: 2.13.1
ghc: 9.4.8

Consulting the cradle to get project GHC version...
2024-03-16T19:04:50.992505Z | Debug | cabal exec -v0 -- ghc --print-libdir
2024-03-16T19:04:51.147451Z | Debug | cabal exec -v0 -- ghc -package-env=- -ignore-dot-ghci -e Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)
2024-03-16T19:04:51.224244Z | Debug | cabal --builddir=/home/thomas/.cache/hie-bios/dist-hlox-1a935d12146f65740c93580ab0e3a370 v2-exec --with-compiler /home/thomas/.cache/hie-bios/wrapper-b54f81dea4c0e6d1626911c526bc4e36 --with-hc-pkg /home/thomas/.cache/hie-bios/ghc-pkg-f991dad7f140da4685186d716b70b438 ghc -v0 -- --numeric-version
Environment Variables
HIE_BIOS_GHC: /home/thomas/.ghcup/ghc/9.4.8/lib/ghc-9.4.8/bin/ghc-9.4.8
HIE_BIOS_GHC_ARGS: -B/home/thomas/.ghcup/ghc/9.4.8/lib/ghc-9.4.8/lib
Project GHC version: 9.4.8
haskell-language-server exe candidates: ["haskell-language-server-9.4.8","haskell-language-server"]
Launching haskell-language-server exe at:/home/thomas/.ghcup/bin/haskell-language-server-9.4.8
2024-03-16T19:04:51.303610Z | Debug | cabal exec -v0 -- ghc --print-libdir
2024-03-16T19:04:51.457805Z | Debug | cabal exec -v0 -- ghc -package-env=- -ignore-dot-ghci -e Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)
2024-03-16T19:04:51.614621Z | Debug | cabal --builddir=/home/thomas/.cache/hie-bios/dist-hlox-1a935d12146f65740c93580ab0e3a370 v2-exec --with-compiler /home/thomas/.cache/hie-bios/wrapper-b54f81dea4c0e6d1626911c526bc4e36 --with-hc-pkg /home/thomas/.cache/hie-bios/ghc-pkg-f991dad7f140da4685186d716b70b438 ghc -v0 -- -v0 -package-env=- -ignore-dot-ghci -e Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)
Environment Variables
HIE_BIOS_GHC: /home/thomas/.ghcup/ghc/9.4.8/lib/ghc-9.4.8/bin/ghc-9.4.8
HIE_BIOS_GHC_ARGS: -B/home/thomas/.ghcup/ghc/9.4.8/lib/ghc-9.4.8/lib
2024-03-16T19:04:51.693325Z | Debug | cabal exec -v0 -- ghc --print-libdir
2024-03-16T19:04:51.847618Z | Debug | cabal exec -v0 -- ghc -package-env=- -ignore-dot-ghci -e Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)
2024-03-16T19:04:51.914209Z | Debug | cabal --builddir=/home/thomas/.cache/hie-bios/dist-hlox-1a935d12146f65740c93580ab0e3a370 v2-exec --with-compiler /home/thomas/.cache/hie-bios/wrapper-b54f81dea4c0e6d1626911c526bc4e36 --with-hc-pkg /home/thomas/.cache/hie-bios/ghc-pkg-f991dad7f140da4685186d716b70b438 ghc -v0 -- --print-libdir
Environment Variables
HIE_BIOS_GHC: /home/thomas/.ghcup/ghc/9.4.8/lib/ghc-9.4.8/bin/ghc-9.4.8
HIE_BIOS_GHC_ARGS: -B/home/thomas/.ghcup/ghc/9.4.8/lib/ghc-9.4.8/lib
/home/thomas/.ghcup/hls/2.7.0.0/lib/haskell-language-server-2.7.0.0/bin//haskell-language-server-9.4.8: error while loading shared libraries: libHShaskell-language-server-2.7.0.0-l-hls-qualify-imported-names-plugin-6c99426d851435d186c607a3a593b9558e1a11f29351f1465cf1211047315fc0-ghc9.4.8.so: cannot open shared object file: No such file or directory

[fendor]

Hi! Thank you for your bug report!

Locally, I do have that path and the tar ball https://downloads.haskell.org/~ghcup/unofficial-bindists/haskell-language-server/2.7.0.0/haskell-language-server-2.7.0.0-x86_64-linux-ubuntu22.04.tar.xz also contains this shared library.

Perhaps installation was interrupted for some reason? Have you tried reinstalling this HLS version via ghcup rm hls 2.7.0.0 and then running ghcup install hls 2.7.0.0?

[agreyyy]

I am getting the same issue on neovim too, when using the 2.7.0 version of HLS downloaded by Mason. here are the logs if you are interested, reinstalling did not help.

[fendor]

Are you on the same platform?

[agreyyy]

Are you on the same platform?

Yeah sorry I shouldve specified all those details earlier:
Which OS do you use?
Linux Mint 21.3
Which version of GHC do you use and how did you install it?
(9.2.7 and 9.6.4) from ghcup
How is your project built (alternative: link to the project)?
cabal
Which LSP client (editor/plugin) do you use?
Haskell-tools.nvim (neovim)
Which version of HLS do you use and how did you install it?
v2.7.0.0 via Mason nvim
Have you configured HLS in any way (especially: a hie.yaml file)?
No

[fendor]

Very unsettling! cc @hasufell, perhaps you have an idea what's up?

[hasufell]

I can't reproduce. I tried in a linuxmintd/mint21.3-amd64 docker container with default and vanilla channel. Everything works. The file is there.

[agreyyy]

idk what else to tell you, I did a ghcup nuke, then installed ghc, stack, cabal, ghcup via the curl script in the download haskell page on the official website, and set up a minimal reproduction of haskell-tools.nvim in neovim with their minimal.lua file and ran neovim. Same error, also same error with the VsCode Haskell extension,tried with both the Mason install of HLS and local install of HLS (both 2.7.0.0, compatible with 9.4.8 ghc). LSP logs are the same too.

[hasufell]

Is the file there? If so, what does ldd show?

[agreyyy]

no file does not exist, /home/andrey/.local/share/nvim/mason/packages/haskell-language-server/lib/haskell-language-server-2.7.0.0/bin//haskell-language-server-9.4.8 does exist, its trying to find some shared object (so) file and I have no idea what path its trying to find that file at. Some .so file called libHShaskell-language-server-2.7.0.0-l-hls-qualify-imported-names-plugin-6c99426d851435d186c607a3a593b9558e1a11f29351f1465cf1211047315fc0-ghc9.4.8.so