Unexpected error using org-gnus-follow-link

Unexpected error using org-gnus-follow-link

[Fraga, Eric]

Hello all,

I upgraded both Emacs (from git) and org (elpa) in the last couple of
days.  Today I find that I get the following error using
org-open-at-point:

--8<---------------cut here---------------start------------->8---
Debugger entered--Lisp error: (void-function nil)
  nil()
  org-gnus-follow-link("nnml+outlook:mail.dt2022" "[...]")
  org-gnus-open("nnml+outlook:mail.dt2022#[...]" nil)
  org-link-open((link (:standard-properties [1994 nil 2111 2179 2181 0 nil nil nil nil nil nil nil nil #<buffer todo.org> nil nil (paragraph (:standard-properties [1994 1994 1994 2182 2182 0 nil nil element t (3 . 1815) nil nil nil #<buffer todo.org> nil nil (item ...)]))] :type "gnus" :type-explicit-p t :path "nnml+outlook:mail.dt2022#[...]" :format bracket :raw-link "gnus:nnml+outlook:mail.dt2022#[...]" :application nil :search-option nil)) nil)
  org-open-at-point(nil)
  funcall-interactively(org-open-at-point nil)
  command-execute(org-open-at-point)
--8<---------------cut here---------------end--------------->8---

with message reference elided.

I cannot really reduce this to a minimal example or use -Q due to need
to have gnus configured.

Any suggestions on how to resolve this?  The vast majority of my TODO
entries have gnus email links and they have always worked just fine.
The problem could, of course, be with gnus but I cannot tell from the
above backtrace.

Thank you,
eric
-- 
: Eric S Fraga, with org 9.7.17-3ae179 in Emacs 31.0.50

Re: Unexpected error using org-gnus-follow-link

[Visuwesh]

[வியாழன் டிசம்பர் 12, 2024] Fraga, Eric wrote:

> Hello all,
>
> I upgraded both Emacs (from git) and org (elpa) in the last couple of
> days.  Today I find that I get the following error using
> org-open-at-point:
>
> Debugger entered--Lisp error: (void-function nil)
>   nil()
>   org-gnus-follow-link("nnml+outlook:mail.dt2022" "[...]")
>   org-gnus-open("nnml+outlook:mail.dt2022#[...]" nil)
>   org-link-open((link (:standard-properties [1994 nil 2111 2179 2181 0 nil nil nil nil nil nil nil nil #<buffer todo.org> nil nil (paragraph (:standard-properties [1994 1994 1994 2182 2182 0 nil nil element t (3 . 1815) nil nil nil #<buffer todo.org> nil nil (item ...)]))] :type "gnus" :type-explicit-p t :path "nnml+outlook:mail.dt2022#[...]" :format bracket :raw-link "gnus:nnml+outlook:mail.dt2022#[...]" :application nil :search-option nil)) nil)
>   org-open-at-point(nil)
>   funcall-interactively(org-open-at-point nil)
>   command-execute(org-open-at-point)
>
> with message reference elided.
>
> I cannot really reduce this to a minimal example or use -Q due to need
> to have gnus configured.
>
> Any suggestions on how to resolve this?  The vast majority of my TODO
> entries have gnus email links and they have always worked just fine.
> The problem could, of course, be with gnus but I cannot tell from the
> above backtrace.

A shot in the dark after looking at org-gnus-follow-link: what is the
value of org-link-frame-setup?  Does it have the gnus entry?

Re: Unexpected error using org-gnus-follow-link

[Fraga, Eric]

Response below/inline for email Visuwesh wrote:
> (original email sent 12 Dec 2024 at 20:32)
> 
> A shot in the dark after looking at org-gnus-follow-link: what is the
> value of org-link-frame-setup?  Does it have the gnus entry?

Wow!  What an excellent shot in the dark. :-)

I happened to play with the orgrr package which unfortunately actually
changes that variable.  Resetting it to the default works just fine.

Many thanks.

It does beg the question: should org fail more gracefully and/or give an
error message in such a context?

Thanks again,
eric

-- 
: Eric S Fraga, with org 9.7.17-3ae179 in Emacs 31.0.50

Re: Unexpected error using org-gnus-follow-link

[Visuwesh]

[வியாழன் டிசம்பர் 12, 2024] Fraga, Eric wrote:

> Response below/inline for email Visuwesh wrote:
>> (original email sent 12 Dec 2024 at 20:32)
>> 
>> A shot in the dark after looking at org-gnus-follow-link: what is the
>> value of org-link-frame-setup?  Does it have the gnus entry?
>
> Wow!  What an excellent shot in the dark. :-)
>
> I happened to play with the orgrr package which unfortunately actually
> changes that variable.  Resetting it to the default works just fine.
>
> Many thanks.

Glad to be of help.

> It does beg the question: should org fail more gracefully and/or give an
> error message in such a context?

I quickly checked the usage of that defcustom and Org does not fall back
gracefully in other places too.  While we can fix it, it would be good
to inform the maintainers of orgrr about this too.

Re: Unexpected error using org-gnus-follow-link

[Fraga, Eric]

Response below/inline for email Visuwesh wrote:
> (original email sent 13 Dec 2024 at 11:12)
> 
> While we can fix it, it would be good to inform the maintainers of
> orgrr about this too.

I intend to.  There are several bits of orgrr that stomp over the user's
preferences.  Otherwise, it's an interesting package.

Thanks again,
eric
-- 
: Eric S Fraga, with org 9.7.17-3ae179 in Emacs 31.0.50

Re: Unexpected error using org-gnus-follow-link

[Max Nikulin]

On 13/12/2024 12:42, Visuwesh wrote:
> [வியாழன் டிசம்பர் 12, 2024] Fraga, Eric wrote:
>> Response below/inline for email Visuwesh wrote:
>>> (original email sent 12 Dec 2024 at 20:32)
>>>
>>> A shot in the dark after looking at org-gnus-follow-link: what is the
>>> value of org-link-frame-setup?  Does it have the gnus entry?
> 
>> It does beg the question: should org fail more gracefully and/or give an
>> error message in such a context?
> 
> I quickly checked the usage of that defcustom and Org does not fall back
> gracefully in other places too.

The question is if nil should mean "Do not call any setup function at 
all" or the default value should be used as a fallback.