On 01.02.23 16:35, Basil L. Contovounesios wrote:
> Gregor Kling [2023-02-01 13:21 +0100] wrote:
> 
>> On 01.02.23 12:10, Basil L. Contovounesios wrote:
>>
>>> What versions do you have installed?
>>
>>   Status: Installed in ‘emacsql-3.1.1/’ (unsigned).
> 
> This looks like the version from MELPA Stable.
> 
>>   Status: Installed in ‘emacsql-sqlite-builtin-20221127.2146/’ (unsigned).
> 
> And this like the version from MELPA.
> 
> This seems like a likely culprit, because the emacsql-connection class
> changed between these versions.
> 
> What is your value of package-archives?
> 
> I suggest making sure all your EmacSQL packages are installed from the
> same archive:
> 
>    either https://elpa.nongnu.org/nongnu-devel/
>        or https://melpa.org/packages/
> 
> This should ensure that their versions are mutually consistent.
>  > If different versions of the same package exist in different archives,
> you can tell Emacs precisely where to get different packages from by
> customising the user options package-archive-priorities and
> package-pinned-packages.

In the aftermath this would have been better placed in
help-gnu-emacs because of lack of knowledge.

Nevertheless, thanks Basil, for breaking the tie.

(setq package-archives
       '(("GNU ELPA"     . "https://elpa.gnu.org/packages/")
         ("nongnu"       . "https://elpa.nongnu.org/nongnu/")
         ("nongnu-devel" . "https://elpa.nongnu.org/nongnu-devel/"))
       package-archive-priorities
       '(("GNU ELPA"     . 10)
         ("nongnu"       . 8)
         ("nongnu-devel" . 6))
(setq package-pinned-packages
       '(("emacsql-sqlite-builtin" . "nongnu-devel")))

has solved the issue.

-- 
Gregor Kling

Abteilung ITS, Sachgebiet ITS-N
Anwendungsentwicklung (IPAM, Tooling, Automation)
DNS, DHCP
Technische Hochschule Mittelhessen
University of Applied Sciences
Tel: 0641/309-1292
E-Mail: gregor.kling@its.thm.de