Melpa nim-mode <> flycheck-nimsuggest dependency issue

[kaushalmodi]

Conforming Bugs

Please tell us below:

• [x] basic information
  • OS name -- RHEL 6.6
  • Versions: Emacs 25.3, Nim compiler 0.17.3 (devel d47fec5bccde33f84a8c5e31d70dcaae184191a5), and nimsuggest (gives same version info as that of nim)
• [x] Are you using latest version of nim-mode?
• [x] Are there message related to nim-mode in *Messages* buffer? Yes, emacs errors at package-initialize itself: See below.
• [x] Did you read README.md?
• [x] Is your problem related to nimsuggest-mode? (company-mode, flycheck, or el-doc) Most likely due to the recent inter-dependency between nim-mode and flycheck-nimsuggest.
  • [x] Did you try nim-mode without nimsugggest-mode? What happened? That does not help as the issue happens during package initialization. My nim config isn't even getting loaded yet.

And describe your problem:

• At emacs startup, I get this error at the time of package-initialize:

Debugger entered--Lisp error: (error "Unable to activate package ‘flycheck-nimsuggest’.
Required package ‘nim-mode-0.4.1’ is unavailable")
  signal(error ("Unable to activate package ‘flycheck-nimsuggest’.\nRequired package ‘nim-mode-0.4.1’ is unavailable"))
  error("Unable to activate package `%s'.\nRequired package `%s-%s' is unavailable" flycheck-nimsuggest nim-mode "0.4.1")
  package-activate-1([cl-struct-package-desc flycheck-nimsuggest (20171025 135) "flycheck backend for Nim using nimsuggest" ((flycheck (0 23)) (nim-mode (0 4 1)) (emacs (24 3))) nil nil "/home/kmodi/.emacs.d/elpa_25/flycheck-nimsuggest-20171025.135" ((:url . "https://github.com/yuutayamada/flycheck-nimsuggest") (:commit . "b0b094874d4759224174eaacee1d210a181f6f55")) nil] nil deps)
  package-activate(flycheck-nimsuggest)
  package-initialize()
  eval-buffer(#<buffer  *load*-851140> nil "/home/kmodi/.emacs.d/setup-packages.el" nil t)  ; Reading at buffer position 4044
  load-with-code-conversion("/home/kmodi/.emacs.d/setup-packages.el" "/home/kmodi/.emacs.d/setup-packages.el" nil t)
  load("~/.emacs.d/setup-packages.el" nil :nomessage)
  eval-buffer(#<buffer  *load*> nil "/home/kmodi/.emacs.d/init.el" nil t)  ; Reading at buffer position 6862

[kaushalmodi]

Workaround was to remove nim-mode dependency from flycheck-nimsuggest:

Editted flycheck-nimsuggest-pkg.el to be this (removed the (nim-mode "0.4.1") form):

;;; -*- no-byte-compile: t -*-
(define-package "flycheck-nimsuggest" "20171025.135" "flycheck backend for Nim using nimsuggest" '((flycheck "0.23")  (emacs "24.3")) :commit "b0b094874d4759224174eaacee1d210a181f6f55" :url "https://github.com/yuutayamada/flycheck-nimsuggest")

I believe you've got a circular dependency issue here.. just make nim-mode depend on flycheck-nimsuggest (not the other way around too).

[yuutayamada]

thanks @kaushalmodi I've updated flycheck-nimsuggest (might take awhile MELPA is updated though)

[kaushalmodi]

Thanks. I confirm the fix.