[BUG] org-mode failed to open top-level header properly when using the TAB key [9.6.15 (release_9.6.15 @ /usr/share/emacs/29.3/lisp/org/)]

[BUG] org-mode failed to open top-level header properly when using the TAB key [9.6.15 (release_9.6.15 @ /usr/share/emacs/29.3/lisp/org/)]

[Robbie Morrison]

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Hello org-mode developers

I received the following warning and was duly encouraged to file a bug 
report:

---

⛔ Warning (org-element-cache): org-element--cache: Org parser error in 
post-nz.org::7833. Resetting.
The error was: (wrong-type-argument integer-or-marker-p nil)
Backtrace:
nil
Please report this to Org mode mailing list (M-x org-submit-bug-report).

---

One of my top-level headers (with just one leading asterisk) failed to 
open. Switching to text mode showed that there was information to reveal.

I also noticed earlier that one of my top-level headers had managed to 
empty itself on two different occasions. I now watch the status bar to 
check that the file has not changed when doing tasks like narrowing to 
an org-mode subtree.

Sorry I cannot be more specific or insightful.

My thanks to the maintainers for this very useful utility.
-- 
Robbie Morrison
Schillerstraße 85
10627 Berlin
Germany

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------

Emacs : GNU Emacs 29.3 (build 1, x86_64-pc-linux-gnu, GTK+ Version 
3.24.41, cairo version 1.18.0)
of 2024-04-01, modified by Debian
Package: Org mode version 9.6.15 (release_9.6.15 @ 
/usr/share/emacs/29.3/lisp/org/)

current state:
==============
(setq
org-link-elisp-confirm-function 'yes-or-no-p
org-directory "/home/robbie/synk/org"
org-bibtex-headline-format-function #[257 "\300\236A\207" [:title] 3 
"\n\n(fn ENTRY)"]
org-agenda-skip-scheduled-if-done t
org-persist-after-read-hook '(org-element--cache-persist-after-read)
org-export-before-parsing-hook '(org-attach-expand-links)
org-cycle-tab-first-hook '(org-babel-hide-result-toggle-maybe 
org-babel-header-arg-expand)
org-tag-alist '(("URGENT" . 117) ("@PHONE" . 112) ("@ERRANDS" . 101) 
("noexport" . 110))
org-default-notes-file "/home/robbie/synk/org/notes.org"
org-archive-hook '(org-attach-archive-delete-maybe)
org-cycle-hook '(org-cycle-hide-archived-subtrees 
org-cycle-show-empty-lines
org-cycle-optimize-window-after-visibility-change
org-cycle-display-inline-images)
org-persist-before-read-hook '(org-element--cache-persist-before-read)
org-mode-hook '(#[0 "\300\301\302\303\304$\207"
[add-hook change-major-mode-hook org-fold-show-all append local] 5]
#[0 "\300\301\302\303\304$\207"
[add-hook change-major-mode-hook org-babel-show-result-all append local] 5]
org-babel-result-hide-spec org-babel-hide-all-hashes
#[0 "\301\211\207" [imenu-create-index-function org-imenu-get-tree] 2]
robbie-org-mode-customization)
org-agenda-skip-deadline-if-done t
outline-minor-mode-hook '(mediawiki-outline-magic-keys)
org-confirm-shell-link-function 'yes-or-no-p
outline-isearch-open-invisible-function 'outline-isearch-open-invisible
org-agenda-before-write-hook '(org-agenda-add-entry-text)
org-src-mode-hook '(org-src-babel-configure-edit-buffer 
org-src-mode-configure-edit-buffer)
org-confirm-elisp-link-function 'yes-or-no-p
org-speed-command-hook '(org-speed-command-activate 
org-babel-speed-command-activate)
org-fold-core-isearch-open-function 'org-fold--isearch-reveal
org-persist-before-write-hook '(org-element--cache-persist-before-write)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe 
org-babel-header-arg-expand)
org-link-shell-confirm-function 'yes-or-no-p
org-babel-pre-tangle-hook '(save-buffer)
org-agenda-loop-over-headlines-in-active-region nil
org-agenda-start-on-weekday nil
org-occur-hook '(org-first-headline-recenter)
org-metadown-hook '(org-babel-pop-to-session-maybe)
outline-minor-mode-prefix "o"
org-link-parameters '(("attachment" :follow org-attach-follow :complete 
org-attach-complete-link)
("id" :follow org-id-open)
("eww" :follow org-eww-open :store org-eww-store-link)
("rmail" :follow org-rmail-open :store org-rmail-store-link)
("mhe" :follow org-mhe-open :store org-mhe-store-link)
("irc" :follow org-irc-visit :store org-irc-store-link :export
org-irc-export)
("info" :follow org-info-open :export org-info-export :store
org-info-store-link :insert-description org-info-description-as-command)
("gnus" :follow org-gnus-open :store org-gnus-store-link)
("docview" :follow org-docview-open :export org-docview-export :store
org-docview-store-link)
("bibtex" :follow org-bibtex-open :store org-bibtex-store-link)
("bbdb" :follow org-bbdb-open :export org-bbdb-export :complete
org-bbdb-complete-link :store org-bbdb-store-link)
("w3m" :store org-w3m-store-link)
("doi" :follow org-link-doi-open :export org-link-doi-export) ("file+sys")
("file+emacs") ("shell" :follow org-link--open-shell)
("news" :follow
#[514 "\301\300\302Q\"\207" ["news" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("mailto" :follow
#[514 "\301\300\302Q\"\207" ["mailto" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("https" :follow
#[514 "\301\300\302Q\"\207" ["https" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("http" :follow
#[514 "\301\300\302Q\"\207" ["http" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("ftp" :follow
#[514 "\301\300\302Q\"\207" ["ftp" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("help" :follow org-link--open-help :store org-link--store-help)
("file" :complete org-link-complete-file)
("elisp" :follow org-link--open-elisp))
org-metaup-hook '(org-babel-load-in-session-maybe)
org-agenda-include-diary t
org-fast-tag-selection-single-key 'expert
org-reverse-note-order t
)

-- 
Robbie Morrison
Address: Schillerstrasse 85, 10627 Berlin, Germany
Phone: +49.30.612-87617

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Re: [BUG] org-mode failed to open top-level header properly when using the TAB key [9.6.15 (release_9.6.15 @ /usr/share/emacs/29.3/lisp/org/)]

[Ihor Radchenko]

Robbie Morrison <robbie.morrison@posteo.de> writes:

> I received the following warning and was duly encouraged to file a bug 
> report:
>
> ---
>
> ⛔ Warning (org-element-cache): org-element--cache: Org parser error in 
> post-nz.org::7833. Resetting.
> The error was: (wrong-type-argument integer-or-marker-p nil)
> Backtrace:
> nil
> Please report this to Org mode mailing list (M-x org-submit-bug-report).
>
> ---
>
> One of my top-level headers (with just one leading asterisk) failed to 
> open. Switching to text mode showed that there was information to reveal.
>
> I also noticed earlier that one of my top-level headers had managed to 
> empty itself on two different occasions. I now watch the status bar to 
> check that the file has not changed when doing tasks like narrowing to 
> an org-mode subtree.

Thanks for reporting!

I note that you are using Org 9.6.15, while the latest Org version is
Org 9.7.11. You may try to upgrade. It may fix the problems you are
seeing.

If not, please let us know.

If you cannot upgrade, such warnings might be due to recently enabled
parser cache - some bugs have been fixed in that area after Org
9.6.15. You can disable the cache by setting `org-element-use-cache' to
nil.

Hope it helps.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

Re: [BUG] org-mode failed to open top-level header properly when using the TAB key [9.6.15 (release_9.6.15 @ /usr/share/emacs/29.3/lisp/org/)]

[Robbie Morrison]

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Hello Ihor

Many thanks for your follow up.

I have set `org-element-use-cache' to nil as you suggest. Seems fine.

My org-mode is just via the package management system on Ubuntu, so 
somewhat behind I guess.

Am a big fan of org-mode. Tx!

Robbie

On 15/09/2024 14.20, Ihor Radchenko wrote:
> Robbie Morrison<robbie.morrison@posteo.de> writes:
>
>> I received the following warning and was duly encouraged to file a bug
>> report:
>>
>> ---
>>
>> ⛔ Warning (org-element-cache): org-element--cache: Org parser error in
>> post-nz.org::7833. Resetting.
>> The error was: (wrong-type-argument integer-or-marker-p nil)
>> Backtrace:
>> nil
>> Please report this to Org mode mailing list (M-x org-submit-bug-report).
>>
>> ---
>>
>> One of my top-level headers (with just one leading asterisk) failed to
>> open. Switching to text mode showed that there was information to reveal.
>>
>> I also noticed earlier that one of my top-level headers had managed to
>> empty itself on two different occasions. I now watch the status bar to
>> check that the file has not changed when doing tasks like narrowing to
>> an org-mode subtree.
> Thanks for reporting!
>
> I note that you are using Org 9.6.15, while the latest Org version is
> Org 9.7.11. You may try to upgrade. It may fix the problems you are
> seeing.
>
> If not, please let us know.
>
> If you cannot upgrade, such warnings might be due to recently enabled
> parser cache - some bugs have been fixed in that area after Org
> 9.6.15. You can disable the cache by setting `org-element-use-cache' to
> nil.
>
> Hope it helps.
>
-- 
Robbie Morrison
Address: Schillerstrasse 85, 10627 Berlin, Germany
Phone: +49.30.612-87617

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Re: [BUG] org-mode failed to open top-level header properly when using the TAB key [9.6.15 (release_9.6.15 @ /usr/share/emacs/29.3/lisp/org/)]

[Ihor Radchenko]

Robbie Morrison <robbie.morrison@posteo.de> writes:

> Many thanks for your follow up.
>
> I have set `org-element-use-cache' to nil as you suggest. Seems fine.
>
> My org-mode is just via the package management system on Ubuntu, so 
> somewhat behind I guess.

Ok.  I am thus closing this bug report, as there is nothing more we can
do on Org side.

Canceled.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>