Re: [O] orgmode beamer mode: BMCO does not export to latex any longer: ===> suspect identified: (ox-extras-activate '(ignore-headlines))

[Martin Steffen]

Hi,

one week ago I reported that export to latex/beamer refuses to export,
and the reason where it did not do it was, according to my email

BMCOL


(slides that contained that derailed the export terminally).

In the meantime, I found one line that, when removed, solves the
problem. In that sense, one might say, it's not BMCOL which is the
problem but the the combination. The problematic ``feature interaction''
is with the package

   (require 'ox-extra)

which in itself does not cause the damage, but if I add

   (ox-extras-activate '(ignore-headlines))


then that kills the export.  Note: there had been a time when that still
worked. 


PS: I tested it on the very latest git-pull (org-mode-version 9.1.6) and
emacs-24.3.1 (but I had similar problems for emacs-25, only that I did
not veryfy that it's the same line with ``ox-extra'' that causes the
trouble, but it's more than plausible).













> "Martin" == Martin Steffen  writes:

Martin> Thanks a lot, it may be that my emacs suffers some
Martin> ``package-overload'', i.e., maybe it's due to an
Martin> interference with some other lisp stuff I load.

Martin>  I just wanted to hear if it's known to be a current glitch
Martin> of the export-beamer thing, before I try to drill down
Martin> (especially since the priority is to make he slides compile
Martin> again rather than trouble-shooting. [I just escape to
Martin> native-latex for multi-cols for now]

Martin> When done with the presentation, I will try to narrow it
Martin> down, cutting down also on the amount of slides (because
Martin> currently is a long and complex thing, which I cannot expect
Martin> others to trawls for abnormalitiees ;-)

Martin> Martin






> "Eric" == Eric S Fraga  writes:

Eric> On Wednesday, 14 Feb 2018 at 10:39, Martin Steffen wrote:
>>> Hi,
>>> 
>>> since recently I have a problem with exporting org-beamer-mode,
>>> the culprit presumably

Eric> [...]

>>> It seems that the BMCOL is the culprit, org-beamer still export
>>> a complicated and long document (as it did before), but probably
>>> a recent update made it stumble over that particular element.

Eric> Works fine for me with org up to date from git.  Not sure what
Eric> to suggest.  What happens with emacs -Q and loading in org
Eric> with no customizations?

Eric> -- Eric S Fraga via Emacs 27.0.50, Org
Eric> release_9.1.6-118-g134243

Re: [O] orgmode beamer mode: BMCO does not export to latex any longer

[Martin Steffen]

Thanks a lot, it may be that my emacs suffers some ``package-overload'',
i.e., maybe it's due to an interference with some other lisp stuff I
load.

 I just wanted to hear if it's known to be a current glitch of the
 export-beamer thing, before I try to drill down (especially since the
 priority is to make he slides compile again rather than
 trouble-shooting. [I just escape to native-latex for multi-cols for
 now]

When done with the presentation, I will try to narrow it down, cutting
down also on the amount of slides (because currently is a long and
complex thing, which I cannot expect others to trawls for abnormalitiees
;-)

Martin






> "Eric" == Eric S Fraga  writes:

Eric> On Wednesday, 14 Feb 2018 at 10:39, Martin Steffen wrote:
>> Hi,
>> 
>> since recently I have a problem with exporting org-beamer-mode,
>> the culprit presumably

Eric> [...]

>> It seems that the BMCOL is the culprit, org-beamer still export a
>> complicated and long document (as it did before), but probably a
>> recent update made it stumble over that particular element.

Eric> Works fine for me with org up to date from git.  Not sure what
Eric> to suggest.  What happens with emacs -Q and loading in org
Eric> with no customizations?

Eric> -- Eric S Fraga via Emacs 27.0.50, Org
Eric> release_9.1.6-118-g134243

Re: [O] orgmode beamer mode: BMCO does not export to latex any longer

[Eric S Fraga]

On Wednesday, 14 Feb 2018 at 10:39, Martin Steffen wrote:
> Hi, 
>
> since recently I have a problem with exporting org-beamer-mode, the
> culprit presumably

[...]

> It seems that the BMCOL is the culprit, org-beamer still export a
> complicated and long document (as it did before), but probably a recent
> update made it stumble over that particular element.

Works fine for me with org up to date from git.
Not sure what to suggest.  What happens with emacs -Q and loading in org
with no customizations?

-- 
Eric S Fraga via Emacs 27.0.50, Org release_9.1.6-118-g134243


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[O] orgmode beamer mode: BMCO does not export to latex any longer

[Martin Steffen]

Hi, 

since recently I have a problem with exporting org-beamer-mode, the
culprit presumably

 BMCOL

It's org, in beamer mode. The mode still allows to turn some headers
into BMCOL (multiple colums) via some keybindings

``C-c C-b |'' (representing org-beamer-select-environment "|")

That results in lines like
--
*** Some text :B_block:BMCOL:
:PROPERTIES:
:BEAMER_col: 0.5
:END:
.

which is supposed to  be a block taking 50% of the slide's width.


So far so good (and as it used to be). 

Now, when /exporting/ the org-document to latex with 

 C-c C-e l b (l for latex, b for beamer-class)

the export peocedure trips over some error and 
  
   nothing is exported 

(the same occurs if I directly want to generated the PDF, and also if I
export the beamer-org document to a ``arcticle''-kind of style, so to
have a script). The message for the error reads like


--
[...]
org-babel-exp process tac at position 108835...
org-babel-exp process tac at position 109478...
org-beamer--format-block: Wrong type argument: number-or-marker-p, nil
-


It seems that the BMCOL is the culprit, org-beamer still export a
complicated and long document (as it did before), but probably a recent
update made it stumble over that particular element.


Any suggestion where to look?

thanks, Martin

PS: org-version="9.1.6"
emacs-version: GNU Emacs 24.3.1