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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
jjk
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  • 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 '22 at 16:30
  • This is no doubt a duplicate question. Search for "void-function" and you'll find it, I expect. – Drew Jul 10 '22 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 '22 at 16:31
  • Does this answer your question? [Error when loading new version of org mode](https://emacs.stackexchange.com/questions/55410/error-when-loading-new-version-of-org-mode) – Drew Jul 10 '22 at 16:33
  • @NickD Org mode version 9.5.2 – jjk Jul 11 '22 at 19:12
  • You probably have a curdled installation where you are getting some bits from one place and some from another. The answer below contains some useful hints for you to try. – NickD Jul 11 '22 at 21:11
  • So yes, you are probably getting some bits from the 20210920 package of Org mode and the rest from 28.1. I'd recommend that you uninstall the 20210920 package completely with `M-x package-delete` and try again. – NickD Jul 14 '22 at 13:30

1 Answers1

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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.

  • Thanks. Did as you suggested, yet I fail getting the clues out of the `this path hides that path` – jjk Jul 14 '22 at 07:24
  • Why don't you post the results after running occur for `org-agenda` and `org-macs`. Remove any private information from the path. –  Jul 14 '22 at 07:31
  • Did you try with `emacs -q` and `emacs -Q`? –  Jul 14 '22 at 07:32
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    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. –  Jul 14 '22 at 12:27
  • Removing the directory as you suggested solved it. I furthermore removed/re-installed `org-superstar` – jjk Jul 15 '22 at 08:17