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The error happens with the cursor in org agenda view and I want the next span displayed.

Can anyone make sense of the debugger?

I can't but only guess. Searching my init.el for org-let or org-agenda doesn't lead to any clues.

Debugger entered--Lisp error: (void-function org-let)
  org-let(nil (org-agenda-list 'nil nil 'week nil))
  org-agenda-redo()
  org-agenda-later(1)
  funcall-interactively(org-agenda-later 1)
  call-interactively(org-agenda-later nil nil)
  command-execute(org-agenda-later)

Edit: list-load-path-shadows excerpt:

/home/user/.emacs.d/elpa/develop/org-20210920/org-macs hides /usr/share/emacs/28.1/lisp/org/org-macs
/home/user/.emacs.d/elpa/develop/org-20210920/org-agenda hides /usr/share/emacs/28.1/lisp/org/org-agenda
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7
  • Function org-let isn't defined. You need to load the library that defines that function. If it's defined as part of Org then you might need to update to a more recent Org version.
    – Drew
    Jul 10, 2022 at 16:30
  • This is no doubt a duplicate question. Search for "void-function" and you'll find it, I expect.
    – Drew
    Jul 10, 2022 at 16:31
  • What version of Org mode are you running? Is it the version that comes with your emacs? If not, how do you install Org mode? org-let is defined in org-agenda.el - it was introduced in Org mode 9.4.5 I believe. You may have a somewhat curdled installation.
    – NickD
    Jul 10, 2022 at 16:31
  • Does this answer your question? Error when loading new version of org mode
    – Drew
    Jul 10, 2022 at 16:33
  • @NickD Org mode version 9.5.2
    – jjk
    Jul 11, 2022 at 19:12

1 Answer 1

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You seem to have a goofed up org installation. Do

  1. Do M-x list-load-path-shadows RET
  2. In the resulting buffer M-s o org-agenda and M-s o org-macs

The paths that you see will give you a clue about what you need to fix.

To find org version do M-x org-version

A simple search for org-let in github in el files, suggests that org-let was in org-macs in the past. See https://github.com/search?q=org-let+extension%3Ael

In org-9.5.4, C-h f org-let gives me

org-let is a compiled Lisp function in org-agenda.el. This function is obsolete since 2021; use cl-progv instead.

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5
  • Thanks. Did as you suggested, yet I fail getting the clues out of the this path hides that path
    – jjk
    Jul 14, 2022 at 7:24
  • Why don't you post the results after running occur for org-agenda and org-macs. Remove any private information from the path.
    – user31220
    Jul 14, 2022 at 7:31
  • Did you try with emacs -q and emacs -Q?
    – user31220
    Jul 14, 2022 at 7:32
  • 1
    Looked at the load path shadows, no clue what the problem could be. Try removing the directory /home/user/.emacs.d/elpa/develop/org-20210920 entirely, and restart Emacs. Your agenda should work. Once you are satisfied iinstall org-9.5.* from GNU ELPA.
    – user31220
    Jul 14, 2022 at 12:27
  • Removing the directory as you suggested solved it. I furthermore removed/re-installed org-superstar
    – jjk
    Jul 15, 2022 at 8:17

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