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I have a working Gnus setup for email on one machine. I am now trying to create slightly more modular setup on a second machine. When I start Gnus on the second machine, mail is read and the group buffer appears as I would expect, but if I try to enter a folder, I get the following error:

Buffer is read-only: #<buffer *Group*>

I assume this is somehow connected to the fact that I am trying to run Emacs and Gnus out of a non-standard directory (using Chemacs). Does anyone have any idea how to debug this? What variables should I have a look at?

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I had an error in my new set up. The old setup had

(add-hook 'gnus-group-mode-hook 'gnus-topic-mode)

I tried to achieve the same thing via use-package's :hook with

(use-package 'gnus
 :config
 ... 
 :hook (gnus-group-mode gnus-topic-mode))

but I misunderstood the :hook syntax. Thus, I was incorrectly trying to add the two modes as hooks to gnus. D'oh.

So instead I just put

(add-hook 'gnus-group-mode-hook 'gnus-topic-mode))

in the :config block.

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  • The use-package :hook syntax is indeed somewhat counter-intuitive and has been a source of problems on the Emacs SE in the past. Cave canem!
    – NickD
    Nov 18, 2022 at 17:29
  • How did you fix it? By going back to the explicit add-hook?
    – NickD
    Nov 18, 2022 at 17:30
  • Yes. I just put (add-hook 'gnus-group-mode-hook 'gnus-topic-mode)) in the :config block.
    – loris
    Nov 21, 2022 at 7:14
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    Can you add that to the answer? It would make the answer complete, not depending on a comment (that might disappear).
    – NickD
    Nov 21, 2022 at 14:38
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    Thank you for editing the answer!
    – NickD
    Nov 21, 2022 at 16:30

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