File mode specification error: (wrong-number-of-arguments ...

[sacundim]

Fresh MELPA install of version 13.12, when attempting to load a .hs file in the same directory that has a .cabal file:

File mode specification error: (wrong-number-of-arguments #[(other-window) "�\203$�\303\304�!!\211�\203��
\203��\305  !\202\"�\306    !\202\"�\307\310�\")\207\307\311!\207" [buffer-file-name cabal-file other-window haskell-cabal-find-file file-name-directory find-file-other-window find-file error "Could not locate \".cabal\" file for %S" "Cannot locate \".cabal\" file for buffers not visiting any file"] 4 ("/Users/sacundim/.emacs.d/elpa/haskell-mode-13.12/haskell-cabal.elc" . 9453) "P"] 0)

Emacs version:

GNU Emacs 24.5.1 (x86_64-apple-darwin13.4.0, NS apple-appkit-1265.21) of 2015-04-10 on builder10-9.porkrind.org

Haskell mode configuration:

(add-hook 'haskell-mode-hook 'turn-on-haskell-indentation)

(eval-after-load "haskell-mode"
  '(progn
     (define-key haskell-mode-map (kbd "C-x C-d") nil)
     (define-key haskell-mode-map (kbd "C-c C-z") 'haskell-interactive-switch)
     (define-key haskell-mode-map (kbd "C-c C-l") 'haskell-process-load-file)
     (define-key haskell-mode-map (kbd "C-c C-b") 'haskell-interactive-switch)
     (define-key haskell-mode-map (kbd "C-c C-t") 'haskell-process-do-type)
     (define-key haskell-mode-map (kbd "C-c C-i") 'haskell-process-do-info)
     (define-key haskell-mode-map (kbd "C-c M-.") nil)
     (define-key haskell-mode-map (kbd "C-c C-d") nil)))

(eval-after-load "haskell-mode"
  (define-key haskell-mode-map (kbd "C-c v c") 'haskell-cabal-visit-file))

[sacundim]

Removing this bit from the Emacs init file resolves the issue:

(eval-after-load "haskell-mode"
  (define-key haskell-mode-map (kbd "C-c v c") 'haskell-cabal-visit-file))

But I got those lines from the haskell-cabal-mode chapter in the info file that comes with the mode.

[syohex]

@sacundim You miss quote at 2nd eval-after-load.

(eval-after-load "haskell-mode"
  '(define-key haskell-mode-map (kbd "C-c v c") 'haskell-cabal-visit-file))

[sacundim]

@syohex Good catch! I copypasted the code from the *info* buffer, but it turns out that the docs were wrong and were only recently fixed:

03d3c7c

I'm closing this issue.