Warning: Error loading "slime" autoloads

[plibby]

Hello!

I'm seeing the following warning every time I open Emacs (28.2):
Warning (emacs): Error loading "slime" autoloads: (wrong-type-argument stringp nil)

I'm not able to get a better debug trace through running emacs with --debug-init, any suggestions on what else I can provide would be welcomed!

[luismbo]

Try starting Emacs without any config using -q, invoke M-x toggle-debug-on-error and then load SLIME.

[plibby]

No problem that way. My guess is it's something to do with using elpaca to manage my install? Not having this issue with a direct config load. Here's what I'm doing with elpaca:

;;The standard setup from the elpaca README
(defvar elpaca-installer-version 0.4)
(defvar elpaca-directory (expand-file-name "elpaca/" user-emacs-directory))
(defvar elpaca-builds-directory (expand-file-name "builds/" elpaca-directory))
(defvar elpaca-repos-directory (expand-file-name "repos/" elpaca-directory))
(defvar elpaca-order '(elpaca :repo "https://github.com/progfolio/elpaca.git"
			:ref nil
			:files (:defaults (:exclude "extensions"))
			:build (:not elpaca--activate-package)))
(let* ((repo  (expand-file-name "elpaca/" elpaca-repos-directory))
 (build (expand-file-name "elpaca/" elpaca-builds-directory))
 (order (cdr elpaca-order))
 (default-directory repo))
  (add-to-list 'load-path (if (file-exists-p build) build repo))
  (unless (file-exists-p repo)
    (make-directory repo t)
    (when (< emacs-major-version 28) (require 'subr-x))
    (condition-case-unless-debug err
  (if-let ((buffer (pop-to-buffer-same-window "*elpaca-bootstrap*"))
	   ((zerop (call-process "git" nil buffer t "clone"
				 (plist-get order :repo) repo)))
	   ((zerop (call-process "git" nil buffer t "checkout"
				 (or (plist-get order :ref) "--"))))
	   (emacs (concat invocation-directory invocation-name))
	   ((zerop (call-process emacs nil buffer nil "-Q" "-L" "." "--batch"
				 "--eval" "(byte-recompile-directory \".\" 0 'force)")))
	   ((require 'elpaca))
	   ((elpaca-generate-autoloads "elpaca" repo)))
      (kill-buffer buffer)
    (error "%s" (with-current-buffer buffer (buffer-string))))
((error) (warn "%s" err) (delete-directory repo 'recursive))))
  (unless (require 'elpaca-autoloads nil t)
    (require 'elpaca)
    (elpaca-generate-autoloads "elpaca" repo)
    (load "./elpaca-autoloads")))
(add-hook 'after-init-hook #'elpaca-process-queues)
(elpaca `(,@elpaca-order))

;; Install use-package support
(elpaca elpaca-use-package
  ;; Enable :elpaca use-package keyword.
  (elpaca-use-package-mode)
  ;; Assume :elpaca t unless otherwise specified.
  (setq elpaca-use-package-by-default t))

;; Block until current queue processed.
(elpaca-wait)

;;Install and load slime with basic config
(use-package slime
  :init
    (require 'slime-autoloads)
    (add-to-list 'exec-path "/usr/local/bin")
    (setq inferior-lisp-program "sbcl"))

Not sure what else I can share but thank you very much for trying to help me out!

[luismbo]

What about evaluating that config after emacs -q starts? That way you should get a backtrace.

[plibby]

Unfortunately I didn't get anything. I still get the Warning (emacs): Error loading "slime" autoloads: (wrong-type-argument stringp nil) but no errors logged. It must be something in elpaca, so I may want to create an issue over on their repo. Definitely wanted to flag here though in case this crops up for others as I haven't had any issues with other packages (so far 🤞🏻) and with elpaca growing in popularity.