haskell-emacs-init fails in spacemacs

[georgewsinger]

When running haskell-emacs-init in spacemacs I get the error:

Error in process filter: Selecting Deleted Buffer

Emacs then is generally unresponsive for several seconds unless I press C g. If re-run haskell-emacs-init, I get at the bottom a prompt Lisp expression:.

[georgewsinger]

Now when attempting to re-install spacemacs and haskell-emacs I am getting

Add a simple example? (y or n) y
Is stack the correct build tool? (y or n) y
Booting up intero ...
Saving file /home/george/.emacs.d/haskell-fun/Matrix.hs...
Wrote /home/george/.emacs.d/haskell-fun/Matrix.hs
helm-M-x: Opening input file: No such file or directory, /home/george/.emacs.d/haskell-fun/HaskellEmacs.hs
error in process filter: intero-read-buffer: Selecting deleted buffer
error in process filter: Selecting deleted buffer
error in process filter: intero-read-buffer: Selecting deleted buffer
error in process filter: Selecting deleted buffer

And it seems that the only thing being generated in haskell-fun is the lone Matrix.hs file.

[georgewsinger]

After pasting HaskellEmacs.hs from the GitHub repo into haskell-fun/HaskellEmacs.hs (with no other files in haskell-fun), I now get a bunch of intero errors when compiling. I only get this once, however, and if I re-run haskell-emacs it says it successfully compiles (and indeed there is a stack project populated in haskell-fun). Maybe intero is the issue?

In any event, the stock functions like Matrix.identity are now being populated into emacs. The problem now is that when I run, i.e., (Matrix.identity 3) (like in the README) I get:

Debugger entered--Lisp error: (invalid-function (lambda t "identity :: Int -> [[Int]]

Returns an identity matrix of size n.
" (cons (quote progn) (cons (list (quote process-send-string) (quote haskell-emacs--proc) (list (quote format) "%S" (list (quote haskell-emacs--optimize-ast) (list (quote quote) (cons (quote Matrix\.identity) (list . t)))))) (quote ((haskell-emacs--get 0)))))))
  (lambda t "identity :: Int -> [[Int]]\n\nReturns an identity matrix of size n.\n" (cons (quote progn) (cons (list (quote process-send-string) (quote haskell-emacs--proc) (list (quote format) "%S" (list (quote haskell-emacs--optimize-ast) (list (quote quote) (cons ... ...))))) (quote ((haskell-emacs--get 0))))))(3)
  macroexpand((Matrix\.identity 3) nil)
  macroexp-macroexpand((Matrix\.identity 3) nil)
  macroexp--expand-all((Matrix\.identity 3))
  macroexpand-all((Matrix\.identity 3))
  eval-sexp-add-defvars((Matrix\.identity 3))
  elisp--eval-last-sexp(nil)
  #[257 \20\303

[PlumpMath]

When will this problem be resolved ?;
It's been two years, but I really want to use it.
I hope the original author solved it in nixos.
I'm using spacemacs. Currently I am using vanilla emacs, but I am getting the same error.
Did you solve it?

[aezarebski]

This may no longer be a problem; it seems to be working with the following setup.

Spacemacs v.0.200.13
stack version 2.1.3
GNU Emacs version 6.3

I installed via the dotspacemacs-additional-packages by adding the following to the .spacemacs file.

dotspacemacs-additional-packages '(haskell-emacs :location (recipe :fetcher github :repo "knupfer/haskell-emacs"))