Ivan explained this already, but as you asked again, I will repeat
Ivan's message:
you do not need to specify version requirements if your package can live
with older versions of the package you depend on. Then users on old
versions of R can use your package with an older version of OpenMX.
And even if you depend on a newer version of OpenMx, then that is fine
as install.packages() finds out on older versions of R that neither the
required version OpenMx is not installable nor your package.
Best,
Uwe Ligges
On 29.06.2025 10:49, Shu Fai Cheung wrote:
Thanks a lot! Yes, the specific package I encountered that problem is
semptools. I didn't specify that (I should have, sorry for that)
because I am also curious about what we should do in this kind of case
in general.
Even if the package could somehow pass the CRAN checks without
changing the version of R it depends on, is it recommended to change
the version that semptools depends on to R 4.5.0 because OpenMx has
this requirement? If yes, I would do
so to meet CRAN requirements.
Regards,
Shu Fai
On Sun, Jun 29, 2025 at 4:35 PM Ivan Krylov <ikry...@disroot.org> wrote:
В Sun, 29 Jun 2025 13:56:36 +0800
Shu Fai Cheung <shufai.che...@gmail.com> пишет:
An R-CMD-check action on an old release of R, conducted by GitHub
action, failed, because Package C depends on R 4.5.0. However, I found
that several other packages that import Package C, including Package
B, do not require R 4.5.0. They also did not fail in all the CRAN
package checks, including those r-oldrel-* checks.
Is it semptools -> semPlot -> OpenMx?
The situation is indeed suboptimal, because while it's easy to install
a binary build of the previous version of OpenMx for r-oldrel from
CRAN, installing a compatible version of OpenMx from source requires
visiting <https://cran.r-project.org/src/contrib/Archive/OpenMx/> and
resolving dependencies manually, one by one. (There's no dependency
index of archived packages.)
The latest version of semPlot does seem to work with the old version of
OpenMx, seeing as it passes the r-oldrel checks. I think that the
r-oldrel builders and checkers on CRAN won't notice any problem with
semptools either, because they still have the old version of OpenMx
installed.
--
Best regards,
Ivan
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