[Haskell] Spacemacs freezes on "Initializing..." haskell-mode

[TxmszLou]

On the master branch, opening an ".hs" file or manually start haskell-mode after spacemacs finishes starting up freezes the window on "Initializing" and consumes cpu. I tried a fresh install of spacemacs on develop branch and get the same result.

System Info

• OS: archlinux
• Emacs: 24.5-1
• Spacemacs: 0.104.0
• Spacemacs brance: develop

The following layers are included in my configuration file.

dotspacemacs-configuration-layer
'(
      auto-completion
      git
      org
      eyebrowse
      search-engine
      themes-megapack
      gnus
      (colors :variables colors-enable-nyan-cat-progress-bar t)
      haskell
      python
      markdown
      scala
      javascript
      c-c++
      html
      racket
      (latex :variables latex-enable-auto-fill t)
      xkcd
)

[TxmszLou]

Same to this issue

DanielG/ghc-mod#583

[kritzcreek]

What does it say in your Messages buffer after you hit C-g?

[TxmszLou]

"ghc-mod: unknown command: `map-file'"

[kritzcreek]

To fix that error I cloned ghc-mod and installed it from master. If you use stack it's advisable to use the same package snapshot for compiling ghc-mod that your project uses.

[TxmszLou]

I am using cabal, I built ghc-mod from master with "cabal install" and configured following https://github.com/kazu-yamamoto/ghc-mod#using-the-development-version but same "Initializing" issue still exists as the issue I referenced to suggests.

ghc version: 7.10.1
ghc-mod version: 5.3.0.0

[kritzcreek]

I'm sorry. I just started getting the same errors. It was all working yesterday though O.o

I'll investigate and see if I can provide a fix.

[robbyoconnor]

What revision?

[stormpat]

There is some issues with Emacs 24.5.1 and Spacemacs using the dev branch. You could try using master and see if the problems disappear. Theres another issue at #2869

[d12frosted]

I see this problem as well. Develop branch. All installed using stack.

[robbyoconnor]

Maybe try and install 24.4 -- I assume people know how to compile software -- unless on windows...that shit is a royal _PAIN_

[TxmszLou]

Same issue on the master branch (0.103.6)

[robbyoconnor]

@TxmszLou -- try with 24.4 - you're going to have to compile it yourself

[TxmszLou]

@robbyoconnor Sure, I'm downloading the source code... I don't understand what went wrong though...

[TxmszLou]

Same on 24.4, I guess it's ghc-mod's bug which is already addressed in the up coming milestone

[robbyoconnor]

Sometimes upstream bugs happen 😦

[TxmszLou]

It seems to be fixed on ghc-mod version 5.4.0.0