And yes, 'spec' is a typo, the error message appears as a tooltip in emacs so I cannot copy/paste it as text.

Pressing "M-?" should help seeing full message, if I understood the problem correctly.

OK, so now opening each file in emacs works correctly but when I try to load the test file in haskell repl, it fails complaining it cannot find the local package. Here is my cabal file: Name: tdd-qc Version: 1.0 Build-type: Simple Synopsis: This is a sample project License: BSD3 License-file: LICENSE Author: Arnaud Bailly Build-Depends: base Cabal-version: >= 1.8 Executable tdd-qc build-depends: base hs-source-dirs: src main-is: tdd-qc.hs ghc-options: -Wall Test-Suite tdd-qc-test type: exitcode-stdio-1.0 hs-source-dirs: test main-is: tdd-qc-test.hs build-depends: base, QuickCheck >= 2.6, tdd-qc And here is my emacs settings: ;; haskell coding (require 'auto-complete) (require 'haskell-mode) (require 'haskell-cabal) (autoload 'ghc-init "ghc" nil t) (add-hook 'haskell-mode-hook (lambda () (ghc-init))) (eval-after-load "haskell-mode" '(progn (setq haskell-stylish-on-save t) (setq haskell-process-args-cabal-repl '("--ghc-option=-ferror-spans" "--with-ghc=ghci-ng")) (define-key haskell-mode-map (kbd "C-,") 'haskell-move-nested-left) (define-key haskell-mode-map (kbd "C-.") 'haskell-move-nested-right) (define-key haskell-mode-map (kbd "C-c v c") 'haskell-cabal-visit-file) (define-key haskell-mode-map (kbd "C-c C-c") 'haskell-compile) (define-key haskell-mode-map (kbd "C-x C-d") nil) (setq haskell-font-lock-symbols t) ;; Do this to get a variable in scope (auto-complete-mode) ;; from http://pastebin.com/tJyyEBAS (ac-define-source ghc-mod '((depends ghc) (candidates . (ghc-select-completion-symbol)) (symbol . "s") (cache))) (defun my-ac-haskell-mode () (setq ac-sources '(ac-source-words-in-same-mode-buffers ac-source-dictionary ac-source-ghc-mod))) (add-hook 'haskell-mode-hook 'my-ac-haskell-mode) (defun my-haskell-ac-init () (when (member (file-name-extension buffer-file-name) '("hs" "lhs")) (auto-complete-mode t) (setq ac-sources '(ac-source-words-in-same-mode-buffers ac-source-dictionary ac-source-ghc-mod)))) (add-hook 'find-file-hook 'my-haskell-ac-init))) (add-hook 'haskell-mode-hook 'turn-on-haskell-decl-scan) (add-hook 'haskell-mode-hook 'turn-on-haskell-indentation) (eval-after-load "which-func" '(add-to-list 'which-func-modes 'haskell-mode)) (eval-after-load "haskell-cabal" '(define-key haskell-cabal-mode-map (kbd "C-c C-c") 'haskell-compile)) Thanks in advance for any advice.... -- Arnaud Bailly FoldLabs Associate: http://foldlabs.com On Sat, Apr 5, 2014 at 9:03 AM, Arnaud Bailly wrote:

OK, I forgot the —enable-tests flag to cabal install…

However, there seems to be some strange interactions I do not understand fully with the test section of cabal. Here is the cabal file:

name: Thermometre version: 0.1.0.0 synopsis: synopsis -- description: license: PublicDomain license-file: LICENSE author: Black -- maintainer: -- copyright: -- category: build-type: Simple cabal-version: >= 1.8

library hs-source-dirs: src exposed-modules: Thermometre build-depends: base == 4.*

test-suite spec type: exitcode-stdio-1.0 ghc-options: -Wall -Werror hs-source-dirs: test main-is: Spec.hs build-depends: base == 4.* , Thermometre , hspec >= 1.3

When I remove the test-suite section and open src/Thermometre.hs I got errors highlighting which is fine. C-c C-t does not give me types however ('Cannot guess type’ message).

When I leave the test-suite section then opening Thermometre.hs gives me a package error: ‘cannot satisfy -package Thermometre’ as there is a dependency from the tests to the main library.

How can I solve that?

Thanks Arnaud

On 03 Apr 2014, at 23:30, Kazu Yamamoto (山本和彦) wrote:

...

...

I upgrade my emacs configuration with latest ghc-mod and all of sudden nothing works (again). When I try to load a .hs file from a project I got the first line highlighted with the error "cannot satisfy -package spec" and I cannot got type, info or doc from that file. Also I do not have anymore syntax errors highlighting I used to see.

As this message suggests, you need to install spec for testing.

% cabal install spec

# I don't know what the spec package is. A typo for hspec?

This is because ghc-mod obtains dependency for executables, libraries *and* testing.

In general, % cabal install --only-dependencies would help you.

--Kazu