Error enabling Flyspell mode (Error: No word lists can be found for the language "en_US")

Question

I recently saw my emacs (GNU Emacs 27.1 running on Arch Linux) throw this error:

Error enabling Flyspell mode:
(Error: No word lists can be found for the language "en_US".)

when I visited a markdown file. My emacs is configured to use the latest commit on the develop branch of spacemacs. Any idea how I can allow Flyspell to find a word list?

I tried the solution from Error: No word lists can be found for the language "en_US", which was to simply install aspell, but it doesn't fix the problem.

Answer 1

One needs to install additional dictionaries used either by ispell or, in your case, aspell programs: there are corresponding packages for them (looks like this, I'm not on arch, so can not speak for this).

You can see what kind of languages are available using M-x spell-checking/change-dictionary.