"Wrong number of arguments: (3 . 3), 2" error

[nameiwillforget]

After creating the mu4easy-contexts in .emacs, I get the error "Wrong number of arguments: (3 . 3), 2" relating to the mu4easy-contexts-function. I've created two context-entries for accounts that I successfully synchronized with mbsync, though the error had already appeared when I had three contexts specified, the third being for a gmail account I couldn't synchronize. I've created all the folders specified in the readme, as some were not initialized because no mails were in them. I installed mu4easy through melpa.

[danielfleischer]

Let's start with the basics: what are the Emacs and mu4e versions? also, after specifying mu4easy-contexts customization, you need to either run (setq mu4e-contexts (mapcar #'eval mu4easy-contexts)) for them to be evaluated or just restart Emacs.

[nameiwillforget]

Sorry, I thought if I reply to the mail directly, it would put it into GitHub automatically. Anyway, Emacs version is 28.2, mu4e is 1.8.13. The error comes when I restart emacs. I've tried now the command you sent, but it gives the error "setq: Symbol’s value as variable is void: mu4easy-contexts".

[danielfleischer]

It should work with email. Anyways, not sure what's wrong. Do you load the library? how do you call it in your config file?

[nameiwillforget]

The entire mu4easy-code currently in the file consists of the following:

(use-package mu4easy
  :ensure t
  :bind ("C-c u" . mu4e)
  :config (mu4easy-mode))

(defcustom mu4easy-contexts
        
       ((mu4easy-context
          :c-name  "gmx"
          :maildir "gmx"
          :mail    "***"
          :smtp    "mail.gmx.com")
        
        ,(mu4easy-context
          :c-name    "proton"
          :maildir   "proton"
          :mail      "***"
          :smtp      "127.0.0.1"
          :smtp-type ssl
          :smtp-port 1025)
        ))
        

[danielfleischer]

Ok, that's not the right way to define a custom variable that was already defined. Either do

(custom-set-variables '(mu4easy-contexts
                        '((mu4easy-context
                           :c-name  "gmx"
                           :maildir "gmx"
                           :mail    "***"
                           :smtp    "mail.gmx.com")
                          
                          (mu4easy-context
                           :c-name    "proton"
                           :maildir   "proton"
                           :mail      "***"
                           :smtp      "127.0.0.1"
                           :smtp-type ssl
                           :smtp-port 1025))))

Or use the :custom keyword of use-package:

(use-package mu4easy
  :ensure t
  :bind ("C-c u" . mu4e)
  :config (mu4easy-mode)
  :custom
  (mu4easy-contexts ((mu4easy-context
                      :c-name  "gmx"
                      :maildir "gmx"
                      :mail    "***"
                      :smtp    "mail.gmx.com")
                     
                     (mu4easy-context
                      :c-name    "proton"
                      :maildir   "proton"
                      :mail      "***"
                      :smtp      "127.0.0.1"
                      :smtp-type ssl
                      :smtp-port 1025))))

[danielfleischer]

Fixed the README thanks to your comment.

[nameiwillforget]

Thanks, but it still doesn't work. If I try the following configuration:

(use-package mu4easy
  :ensure t
  :bind ("C-c u" . mu4e)
  :config (mu4easy-mode))

(custom-set-variables '(mu4easy-contexts
                        '((mu4easy-context
                           :c-name  "gmx"
                           :maildir "gmx"
                           :mail    "***"
                           :smtp    "mail.gmx.com")
                          
                          (mu4easy-context
                           :c-name    "proton"
                           :maildir   "proton"
                           :mail      "***"
                           :smtp      "127.0.0.1"
                           :smtp-type ssl
                           :smtp-port 1025))))

and type C-c u, it doesn't start mu4easy-mode, and if I try to start it manually, it says

Wrong number of arguments: (3 . 4), 2

and if I try

(use-package mu4easy
  :ensure t
  :bind ("C-c u" . mu4e)
  :config (mu4easy-mode)
  :custom
  (mu4easy-contexts ((mu4easy-context
                      :c-name  "gmx"
                      :maildir "gmx"
                      :mail    "***"
                      :smtp    "mail.gmx.com")
                     
                     (mu4easy-context
                      :c-name    "proton"
                      :maildir   "proton"
                      :mail      "***"
                      :smtp      "127.0.0.1"
                      :smtp-type ssl
                      :smtp-port 1025))))

and try to start mu4easy-mode, I get

eval: Invalid function: (mu4easy-context :c-name "gmx" :maildir "gmx" :mail "***" :smtp "mail.gmx.com")

Interestingly, if I run mu4easy-update-mail-and-index, it does that. But if I try to change contexts in mu4e, it says no contexts are defined.

[danielfleischer]

Hi, try to add :demand t to the use-package command (e.g. after the :ensure t); there's some lazy loading here I need to solve. I might modify this in the future, but in the meantime this should fix it.

[danielfleischer]

Also try this:

(use-package mu4easy
  :ensure t
  :bind ("C-c u" . mu4e)
  :config (mu4easy-mode)
  :custom
  (mu4easy-contexts '((mu4easy-context
                      :c-name  "gmx"
                      :maildir "gmx"
                      :mail    "***"
                      :smtp    "mail.gmx.com")
                     
                     (mu4easy-context
                      :c-name    "proton"
                      :maildir   "proton"
                      :mail      "***"
                      :smtp      "127.0.0.1"
                      :smtp-type ssl
                      :smtp-port 1025))))