This is a new check in R-devel. The NEWS say:
> R CMD check etc now warn when a package exports non-existing S4 classes or
> methods, also in case of no "methods" presence
In your case, the NAMESPACE contains
> exportClasses("bujar")
> exportMethods("show")
but the package neither defines an S4 class "bujar" nor methods for the
S4 generic "show". You should remove these two lines from your NAMESPACE.
Best regards,
Sebastian Meyer
Am 01.06.20 um 18:34 schrieb Wang, Zhu:
> Dear All,
>
> I received warnings regarding a package:
>
> https://cran.r-project.org/web/checks/check_results_bujar.html
>
> The warning still occurred after I changed export(bujar, gcv.enet) to
> export(bujar) in NAMESPACE. The function bujar was defined in the package, so
> I probably missed something in Sec 1.5.6 in Writing R Extensions.
>
> Could somebody kindly advise how to address the warning?
>
> Thanks,
>
> Zhu Wang
>
> [[alternative HTML version deleted]]
>
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