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I am anything but an Emacs expert but I use Emacs org-mode quite frequently. I configured Emacs to regognize .org files. After I updated to version 26.1 Emacs does not only recognize .org files any longer: 

File mode specification error: (file missing Cannot open load file No such file or directory ob-sh)

but can not even change to org-mode. M-x org-mode gives:

Cannot open load file No such file or directory ob-sh

I did not move my .emacs file or the .emacs.d folder.

Any idea?

phils
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Martin Petersen
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  • After I moved my .emacs file and the .emacs.d folder to another location everything works fine. Still I would like to know what I did wrong. – Martin Petersen Jul 24 '18 at 16:01
  • FYI you didn't do anything wrong. This was a breaking / backwards-incompatible change in org-mode, and I suspect that a lot of people upgrading to Emacs 26 have been (and will continue to be) tripped up by it. – phils Jul 25 '18 at 07:32
  • Here's a tip, unrelated to your problem here: Instead of moving `.emacs` out of the way, just start up with `emacs --no-init-file` (on macOS: `open -a Emacs --args --no-init-file`) instead. (`--no-init-file` can be shortened to `-q`.) There is also a flag `--no-site-file` to stop the loading of site specific files. – Harald Hanche-Olsen Jul 25 '18 at 10:43

1 Answers1

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Emacs 26.1 comes with a much more recent version of org-mode than 25.1. ob-sh was renamed to ob-shell in org-mode 8.2, so you'll need to adjust whichever configuration in .emacs refers to ob-sh, as described in ob-sh removal:

** Incompatible changes

*** ob-sh.el renamed to ob-shell This may require two changes in user config.

  1. In org-babel-do-load-languages, change (sh . t) to (shell . t).

  2. Edit local.mk files to change the value of BTEST_OB_LANGUAGES to remove "sh" and include "shell".

You most likely need to search your config for a call to org-babel-do-load-languages and change sh to shell in the associated list of languages.

phils
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rpluim
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  • Thanks for your help. I searched .emacs and .emacs.d for the string ob-sh but I couldn’t find it. Anyway I will restore my config step by step. – Martin Petersen Jul 24 '18 at 16:48
  • It could be 'sh' rather than 'ob-sh'. Bisecting your config should find the exact problem. – rpluim Jul 24 '18 at 18:11
  • Also `emacs --debug-init` might pinpoint the line which is causing problems. – rpluim Jul 24 '18 at 18:29
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    @MartinPetersen Look in your config for a call to `org-babel-do-load-languages` or setting the variable `org-babel-load-languages`. You will need to change `sh` to `shell` in the associated list of languages. If you might need to support *both* the old and new variants, let us know, as that can also be arranged. – phils Jul 24 '18 at 20:55
  • Thanks to all of you I was able to solve the issue. Everything works now as intended. Again, thanks a ton. – Martin Petersen Jul 25 '18 at 08:20
  • Thanks, saved my day. @MartinPetersen you should mark this as the correct answer – Alex Jan 04 '19 at 09:47
  • I just only followed your guide 1. ,my Emacs 26.2 didn't show error message anymore. – Zoe Rowa Apr 19 '19 at 07:33