[R-pkg-devel] Issue: Function found when exporting methods from the namespace ‘raster’ which is not S4 generic: ‘all.equal’

[Zhian Kamvar]

The reason why Rtools was suggested was because CRAN takes some time for
the binaries to be built and people were trying to install it just after
raster was released.
The solution is for the user to re-install the raster package from CRAN in
a fresh R environment.

All the best,
Zhian


On Fri, Jan 28, 2022 at 6:03 AM Patrick Giraudoux <
patrick.giraudoux using univ-fcomte.fr> wrote:

> Dear listers,
>
> One user (in cc) has signaled a problem installing the package pgirmess
> (versin 1.7.1 on CRAN), with this message on loading:
>
> > library(pgirmess)
>
> Error: package or namespace load failed for ‘pgirmess’:
>
> Function found when exporting methods from the namespace ‘raster’ which
> is not S4 generic: ‘all.equal’
>
> In addition: Warning message:
>
> no function found corresponding to methods exports from ‘raster’ for:
> ‘direction’, ‘gridDistance’
>
> I cannot identify where the trouble comes from since:
>
> - pgirmess goes through OK in all the checks on CRAN
>
> - I can install/remove it with correct loading on my own platform
>
> - pgirmess 1.7.1 does not import 'raster' and the functions mentioned above
>
> The user has installed the last R version on Windows.  However, she gets
> a correct loading only if she loads 'Matrix' before (or 'lme4' - but to
> my knowlege, lme4 actually loads Matrix).
>
> She meets also the same issuer with pgirmess 2.0 (not on CRAN yet, see
> https://github.com/pgiraudoux/pgirmess however this version (still on
> test) has deprecated/dropped all functions related to dealing with rasters.
>
> This occurs in R directly (not necessarily within RStudio).
>
> On the web, Iook likes this issue has is already been spotted for some
> other packages (e.g. mapview, tmap, etc.). Checking help-lists I saw
> that installing rtools might solve the problem (e.g.
>
> https://community.rstudio.com/t/error-package-or-namespace-load-failed-for-mapview/126914)
>
> however, it seems to me a strange workaround since rtools should not be
> made necessary for lay R user (not developers).
>
> Best,
>
>
>
>
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-package-devel using r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-package-devel
>

	[[alternative HTML version deleted]]