ByteCodeLink.lookupCE During interactive linking

[CapSel]

I use Archlinux... and I installed haskell-ide-engine according to instructions here. Then I created a new project with "stack new bonsai-hs yesod/sqlite". Then I set up neovim, and atom to use hie. Both are now reporting this error:

Got error while processing diagnostics: ByteCodeLink.lookupCE During interactive linking, GHCi couldn't find the following symbol: persistentzmsqlitezm2zi9zi3zm3vTiF1ekhY7K8mC4ISF5xR_DatabaseziPersistziSqlite_zdfFromJSONSqliteConf_closure This may be due to you not asking GHCi to load extra object files, archives or DLLs needed by your current session. Restart GHCi, specifying the missing library using the -L/path/to/object/dir and -lmissinglibname flags, or simply by naming the relevant files on the GHCi command line. Alternatively, this link failure might indicate a bug in GHCi. If you suspect the latter, please send a bug report to: glasgow-haskell-bugs@haskell.org

[Anrock]

Does stack ghci work for this project?

[CapSel]

Yes, it does:

Using main module: 1. Package `bonsai-hs' component bonsai-hs:exe:bonsai-hs with main-is file: /home/capsel/projects/bonsai-hs/app/main.hs
bonsai-hs> configure (lib + exe)
Configuring bonsai-hs-0.0.0...
bonsai-hs> initial-build-steps (lib + exe)
The following GHC options are incompatible with GHCi and have not been passed to it: -O2 -threaded
Configuring GHCi with the following packages: bonsai-hs
GHCi, version 8.6.5: http://www.haskell.org/ghc/  :? for help
[ 1 of 13] Compiling Model            ( /home/capsel/projects/bonsai-hs/src/Model.hs, interpreted )
[ 2 of 13] Compiling Settings         ( /home/capsel/projects/bonsai-hs/src/Settings.hs, interpreted )
[ 3 of 13] Compiling Settings.StaticFiles ( /home/capsel/projects/bonsai-hs/src/Settings/StaticFiles.hs, interpreted )
[ 4 of 13] Compiling Import.NoFoundation ( /home/capsel/projects/bonsai-hs/src/Import/NoFoundation.hs, interpreted )
[ 5 of 13] Compiling Foundation       ( /home/capsel/projects/bonsai-hs/src/Foundation.hs, interpreted )
[ 6 of 13] Compiling Import           ( /home/capsel/projects/bonsai-hs/src/Import.hs, interpreted )
[ 7 of 13] Compiling Handler.Profile  ( /home/capsel/projects/bonsai-hs/src/Handler/Profile.hs, interpreted )
[ 8 of 13] Compiling Handler.Home     ( /home/capsel/projects/bonsai-hs/src/Handler/Home.hs, interpreted )
[ 9 of 13] Compiling Handler.Common   ( /home/capsel/projects/bonsai-hs/src/Handler/Common.hs, interpreted )
[10 of 13] Compiling Handler.Comment  ( /home/capsel/projects/bonsai-hs/src/Handler/Comment.hs, interpreted )
[11 of 13] Compiling Application      ( /home/capsel/projects/bonsai-hs/src/Application.hs, interpreted )
[12 of 13] Compiling Main             ( /home/capsel/projects/bonsai-hs/app/main.hs, interpreted )
[13 of 13] Compiling DevelMain        ( /home/capsel/projects/bonsai-hs/app/DevelMain.hs, interpreted )
Ok, 13 modules loaded.
Loaded GHCi configuration from /tmp/haskell-stack-ghci/23f2448c/ghci-script
*Main Application DevelMain Foundation Handler.Comment Handler.Common Handler.Home Handler.Profile Import Import.NoFoundation Model Settings Settings.StaticFiles>```

[samuelpilz]

I am able to reproduce this error. The error message is exactly the same for me. I installed hie fresh form master.

[CapSel]

Should I install hie not from master?

[samuelpilz]

@CapSel master is fine. We will try to investigate this issue

[Anrock]

Should I try reproducing it on OSX/Win/Gentoo or is it arch-only issue?

[samuelpilz]

@Anrock please do. I suspect this is a general issue.

To reproduce:

• I used stack new hie-test-proj-sqlite yesodweb/sqlite to create the project (ghc-8.6.5)
• The error happens when trying to open the file src/Application.hs. Other files may produce other errors, but the one on src/Application.hs is consistent on my machine.

[Anrock]

Hm, just checked on OSX, hie-8.6.5 from a3840a8, neovim + CoC, stack resolver lts-13.29. In src/Application.hs I only get hlint parse error on line 64.

[CapSel]

Try with src/Handler/Comment.hs

[Anrock]

Still fine on OSX with hie-8.6.5 from cea1b9c4. Hlint parse error in src/Application.hs disappeared, in src/Handler/Comment.hs everything is fine too, only hlint complains about redundant bracket.

[fendor]

Can not reproduce on NixOS with current master 0.11.0.0 built from all-hies

[CapSel]

I just pulled from master, installed it, then stack clean and stack purge, stack build inside yesod project.

I'm installing hie with:

stack ./install.hs hie-8.6.5
stack ./install.hs build-data

Same effect. It shows in neovim few seconds after opening file. First it shows some message about "redundant bracket found".

nvim ./src/Handler/Comment.hs

[fendor]

Maybe this is one of these legendary dynamic linking bugs?

[samuelpilz]

The system-ghc does indeed have linking issues. However, the ghcs installed via stack and ghcup are linked statically. How do I know which ghc is used by ghc-mod?

[CapSel]

I just removed ghc from system (pacman -Rucs ghc) then:

• reinstalled hie: stack clean & stack ./install.hs hie-8.6.5
• rebuild my project

No ghc was installed by stack - according to logs. Problem persists.