Uncaught Error: spawn ENOTDIR

[stevenhood]

1. Opened ninetynineproblems.hs that is in a cabal project.
2. Pressed Ctrl + s to save the file.
3. Get the following error every time I save the file: Haskell-ghc-mod: ghc-mod failed with error code 1
4. Then got an error: Uncaught Error: spawn ENOTDIR

Atom Version: 0.209.0 System: Ubuntu 14.04.2 Thrown From: haskell-ghc-mod package, v0.7.5

Stack Trace

Uncaught Error: spawn ENOTDIR

At child_process.js:1145

Error: spawn ENOTDIR
    at exports._errnoException (util.js:734:11)
    at ChildProcess.spawn (child_process.js:1145:11)
    at Object.exports.spawn (child_process.js:977:9)
    at GhcModiProcessTemp.module.exports.GhcModiProcessBase.spawnProcess (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process-base.coffee:43:17)
    at GhcModiProcessTemp.spawnProcess (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process-base.coffee:3:61)
    at GhcModiProcessTemp.module.exports.GhcModiProcessTemp.runModiCmd (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process-temp.coffee:114:22)
    at GhcModiProcessTemp.runModiCmd (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process-temp.coffee:3:61)
    at GhcModiProcessTemp.module.exports.GhcModiProcessTemp.run (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process-temp.coffee:60:23)
    at GhcModiProcessTemp.run (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process-temp.coffee:3:61)
    at GhcModiProcess.module.exports.GhcModiProcess.runQueuedCommands (/home/steven/.atom/packages/haskell-ghc-mod/lib/ghc-modi-process.coffee:164:27)

Commands

     -0:41 core:save (atom-text-editor.editor.is-focused)
     -0:41 ide-haskell:check-file (atom-text-editor.editor.is-focused)
     -0:41 ide-haskell:lint-file (atom-text-editor.editor.is-focused)

Config

{
  "core": {}
}

Installed Packages

# User
autocomplete-haskell, v0.4.4
haskell-ghc-mod, v0.7.5
ide-haskell, v0.5.12
language-haskell, v1.1.1

# Dev
No dev packages

[lierdakil]

Could you try opening whole project directory in Atom? E.g. atom /path/to/project_dir

ENOTDIR would probably mean that project directory detection fails. My guess is that you open standalone file instead of a project directory. If I'm wrong, please correct me.

[stevenhood]

I opened the project directory using the full path from the root, but still getting the same error. And yes you're right, I was opening the file instead of the project directory.

[lierdakil]

That's... weird. Could you check developer console for any messages that might provide some insight?

[stevenhood]

Each time I save the file I get "Haskell-ghc-mod: ghc-mod failed with error code 1". In the console there are messages starting with Array[0] for each of these errors. Apart from that, there's nothing other than what's already in the report.

[lierdakil]

Okay, I'm stumped. Let's do a quick sanity check. What versions of ghc-mod and ghc are you running?

[lierdakil]

I've also released v0.7.6 with more verbose debugging output. You can enable it in haskell-ghc-mod settings.

Things to check for:

• Spawning new ghc-modi instance ... options.cwd=???
• running ghc-mod ... with options.cwd=???
• Anything else that looks strange

You can also copy-paste whole dev. console log here, if you wish. Hopefully that would get us something to understand underlying issue better.

Thanks.

[stevenhood]

ghc: version 7.8.4 ghc-mod: version 5.2.1.2

GUI: 'ghc-modi' could not be spawned. Is it installed and on your path? If so please open an issue on the package spawning the process.

Console:

haskell-ghc-mod debug: Checking for ghc-modi in /home/steven/Programming/99haskellproblems
/home/steven/.atom/packages/haskell-ghc-mod/lib/util.coffee:15 haskell-ghc-mod debug: Spawning new ghc-modi instance for /home/steven/Programming/99haskellproblems with options.cwd = /home/steven/Programming/99haskellproblems,options.env = [object Object]
/home/steven/.atom/packages/haskell-ghc-mod/lib/util.coffee:15 haskell-ghc-mod debug: Running ghc-modi command type,/home/steven/Programming/99haskellproblems/99problems.hs,,2,5
events.js:141 Uncaught Error: write EPIPE
events.js:141 Uncaught Error: spawn ghc-modi ENOENT

[lierdakil]

That's... different. Another sanity check, is ghc-mod/ghc-modi on your PATH? Either way, could you try to specify full path to ghc-mod and ghc-modi executables in haskell-ghc-mod settings?

[lierdakil]

And by the way, /home/steven/Programming/99haskellproblems is a directory, right?

[stevenhood]

Yeah it's a directory. Feel a bit stupid now; realised that I don't have ghc-modi installed! For some reason it wasn't installed when I ran cabal install ghc-mod. I'll try to reinstall ghc-mod and see if it includes it this time. Edit: Removed and reinstalled ghc-mod 5.2.1.2, still no ghc-modi included in the install.

[lierdakil]

@stevenhood, it's been a while. Have you resolved your problem?

[stevenhood]

I haven't I'm afraid. I tried to reinstall ghc-mod using cabal but ghc-modi never gets installed with it for some reason :/

[lierdakil]

Well, as a fallback, you can disable ghc-modi in haskell-ghc-mod settings (uncheck relevant checkmark). That will be noticeably slow, however.

I have literally no idea how is it possible that ghc-modi isn't installed. cabal install installs into $HOME/.cabal/ by default FYI, so you might want to check there. cabal install -g I think installs into /usr/local, but on that, I'm not sure.

[stevenhood]

Turns out ghc-modi was installed! I was looking in /usr/local when it was in $HOME/.cabal/ all along. I've since added it to $PATH, and now I'm not getting any errors related to it any more.

However, I still get Haskell-ghc-mod: /usr/bin/ghc-mod failed with error code 1 each time I save a .hs file.

[lierdakil]

This could be related to cabal misconfiguration or missing dependencies. Try running cabal configure in project directory. If it complains about missing dependencies, you can try cabal sandbox init && cabal install --only-dependencies, which will install sandboxed environment.