Here's what I get:
Case 1:
Debugger entered--Lisp error: (wrong-type-argument stringp (require . info))
signal(wrong-type-argument (stringp (require . info)))
#f(compiled-function (status) #<bytecode 0x1ff5ee3d21c5>)((:peer (:certificates ...)))
apply(#f(compiled-function (status) #<bytecode 0x1ff5ee3d21c5>) (:peer (:certificates ((...)))))
url-http-activate-callback()
url-http-content-length-after-change-function(1543607 1543959 352)
url-http-generic-filter(#<process
melpa.org> "20190713 1344) ((emacs (24 4)) (cl-lib (0 5)) (avy...")
Case 2:
Debugger entered--Lisp error: (wrong-type-argument stringp (require . info))
string-match("\\(\\`\\|/\\)sendmail\\(\\.elc\\|\\.el\\|\\.so\\)?\\(\\.gz\\)?\\'" (require . info))
load-history-filename-element("\\(\\`\\|/\\)sendmail\\(\\.elc\\|\\.el\\|\\.so\\)?\\(\\.gz\\)?\\'")
eval-after-load("sendmail" #f(compiled-function () #<bytecode 0x1fe3afdb7e8d>))
byte-code("\300\301\302\"\210\303\304!\207" [eval-after-load "sendmail" #f(compiled-function () #<bytecode 0x1fe3afdb7e8d>) provide mailabbrev] 3)
require(mailabbrev)
byte-code("\300\301!\210\300\302!\210\300\303!\210\300\304!\210\300\305!\210\300\306!\210\300\307!\210\300\310!\210\300\311!\210\300\312!\210\300\313!\210\300\314!\210\300\315..." [require cl-lib mailheader gmm-utils mail-utils mailabbrev mail-parse mml rfc822 format-spec dired mm-util rfc2047 puny rmc autoload mailclient-send-it "mailclient" custom-declare-group message ((user-mail-address custom-variable) (user-full-name custom-variable)) "Mail and news message composing." :link (custom-manual "(message)Top") :group mail news message-various nil "Various Message Variables." (custom-manual "(message)Various Message Variables") message-buffers "Message Buffers." (custom-manual "(message)Message Buffers") message-sending "Message Sending." (custom-manual "(message)Sending Variables") message-interface "Message Interface." (custom-manual "(message)Interface") message-forwarding "Message Forwarding." (custom-manual "(message)Forwarding") message-insertion "Message Insertion." (custom-manual "(message)Insertion") message-headers "Message Headers." (custom-manual "(message)Message Headers") message-news ...] 14)
require(message)
byte-code("\300\301!\210\300\302!\210\300\303!\210\300\304!\210\305\306\307\310\311\312\311\313\314\315\316\317&\13\207" [require add-log pcvs-util ring message custom-declare-group log-edit nil "Major mode for editing RCS and CVS commit messages..." :group pcl-cvs vc :version "21.1" :prefix "log-edit-"] 12)
require(log-edit)
byte-code("\300\301!\210\300\302!\210\300\303\304\305#\210\300\306\304\305#\210\300\307!\210\300\310!\210\300\311!\210\300\312!\210\313\314\304\315\316\317\320\321\322\323&\11\210\324..." [require dash log-edit magit-git nil t magit-utils ring server transient with-editor custom-declare-group git-commit "Edit Git commit messages." :prefix "git-commit-" :link (info-link "(magit)Editing Commit Messages") :group tools custom-declare-variable global-git-commit-mode funcall function #f(compiled-function () #<bytecode 0x1fe3b126f625>) "Non-nil if Global Git-Commit mode is enabled.\nSee ..." :set custom-set-minor-mode :initialize #f(compiled-function (symbol exp) #<bytecode 0x1fe3b1241291>) :type boolean] 12)
require(git-commit)
byte-code("\300\301!\210\300\302!\210\300\303!\210\300\304!\210\300\305!\210\300\306!\210\300\307!\210\300\310!\210\300\311!\210\300\312!\210\300\313!\210\300\314!\210\300\315..." [require cl-lib dash subr-x with-editor git-commit magit-core magit-diff magit-log magit-wip magit-apply magit-repos format-spec package nil t] 4)
require(magit)
byte-code("\301\302!\210\303\304\305\306\307\310\311\312&\7\210\313\314\315\316\317DD\320\311\304\321\322&\7\210\313\323\315\316\324DD\325\326\327\311\304\321\322\330\331&\13\210\313..." [magit-log-margin--custom-type require magit custom-declare-group magit-status nil "Inspect and manipulate Git repositories." :link (info-link "(magit)Status Buffer") :group magit-modes custom-declare-variable magit-status-mode-hook funcall function #f(compiled-function () #<bytecode 0x1fe3b01f0695>) "Hook run after entering Magit-Status mode." :type hook magit-status-headers-hook #f(compiled-function () #<bytecode 0x1fe3b01f06a1>) "Hook run to insert headers into the status buffer...." :package-version (magit . "2.1.0") :options (magit-insert-error-header magit-insert-diff-filter-header magit-insert-repo-header magit-insert-remote-header magit-insert-head-branch-header magit-insert-upstream-branch-header magit-insert-push-branch-header magit-insert-tags-header) magit-status-sections-hook #f(compiled-function () #<bytecode 0x1fe3b01f06ad>) "Hook run to insert sections into a status buffer." (magit . "2.12.0") magit-status-initial-section #f(compiled-function () #<bytecode 0x1fe3b01f06b9>) "The section point is placed on when a status buffe..." (magit . "2.90.0") (choice (const :tag "as usual" nil) (repeat (choice (number :tag "nth top-level section") (sexp :tag "section identity")))) magit-status-goto-file-position #f(compiled-function () #<bytecode 0x1fe3b00fff8d>) "Whether to go to position corresponding to file po..." (magit . "3.0.0") boolean magit-status-show-hashes-in-headers #f(compiled-function () #<bytecode 0x1fe3b00fff99>) "Whether headers in the status buffer show hashes.\n..." (magit . "2.4.0") magit-status-margin #f(compiled-function () #<bytecode 0x1fe3b00fffb1>) "Format of the margin in `magit-status-mode' buffer..." (magit . "2.9.0") magit-margin :initialize ...] 20)
autoload-do-load((autoload "magit-status" "Show the status of the current Git repository in a..." t nil) magit-status)
command-execute(magit-status)
Case 3:
Debugger entered--Lisp error: (wrong-type-argument stringp (require . finder-inf))
string-match("\\(\\`\\|/\\)imenu\\(\\.elc\\|\\.el\\|\\.so\\)?\\(\\.gz\\)?\\'" (require . finder-inf))
load-history-filename-element("\\(\\`\\|/\\)imenu\\(\\.elc\\|\\.el\\|\\.so\\)?\\(\\.gz\\)?\\'")
eval-after-load("imenu" #f(compiled-function () #<bytecode 0x1fff245b3b69>))
require(org-compat)
byte-code("\302\303!\210\302\304!\210\302\305!\210\302\306!\210\10\307=\204:\0\3101)\0\311\312\11!\313P\314\315\211\211%0\2029\0\210\316\317!\210\320\321!\210..." [this-command load-file-name require cl-lib calendar find-func format-spec eval-buffer (error) load file-name-directory "org-loaddefs.el" nil t message "WARNING: No org-loaddefs.el file could be found fr..." sit-for 3 "You need to run \"make\" or \"make autoloads\" from Or..." org-macs org-compat org-keys ol org-table] 6)
autoload-do-load((autoload "org" "Outline-based notes management and organizer, alia..." t nil) org-mode)
command-execute(org-mode record)
execute-extended-command(nil "org-mode" "org-mode")
funcall-interactively(execute-extended-command nil "org-mode" "org-mode")
call-interactively(execute-extended-command nil nil)
command-execute(execute-extended-command)
The way to reproduce case 3:
1. cd && mkdir backup && mv .emacs .emacs.d backup
2. add following codes to ~/.emacs
(require 'package)
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
(package-initialize)
(provide '.emacs)
3. Open emacs
> M-x package-list-packages
After the package list was refreshed, install yasnippet & yasnippet-snippets
> M-x package-install ENTER yasnippet ENTER
> M-x package-install ENTER yasnippet-snippets ENTER
4. Delete package configration from ~/.emacs, only keep this line:
(provide '.emacs)
5. Exit emacs
6. Delete folders, only keep yasnippet-20200604.246 & yasnippet-snippets-20200802.1658
$ rm -rf ~/.emacs.d/auto-save-list ~/.emacs.d/elpa/archives ~/.emacs.d/elpa/gnupg ~/.emacs.d/elpa/s-20180406.808
7. Now open emacs to edit a .org file:
$ emacs
> C-x C-f
> Find file: ~/ex.org Enter
8. You can see the error in minibuffer:
File mode specification error: (wrong-type-argument stringp (require . finder-inf))
My emacs version: GNU Emacs 27.1 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1894.60 Version 10.15.6 (Build 19G73)) of 2020-08-12
alias emacs='/Applications/Emacs.app/Contents/MacOS/Emacs -nw'
Case 3 cannot be reproduced in Emacs v26.3
Thanks