Set option(warn = 2) to turn those warnings into errors. Then look at traceback() to find out where they're coming from.
Also, see if you can replicate it in a fresh R --vanilla session. My $.02 Henrik On Thu, Aug 2, 2018, 09:41 Ivailo <ubuntero.9...@gmail.com> wrote: > Dear list-members, > > I have switched (back) to a terminal-based workflow for a while now > and have noticed that after starting the HTML-based help > [help.start()], then visiting the package-list (at > http://127.0.0.1:<random_port>/doc/html/packages.html), and after the > accessed page has been "generated" (as indicated by the message > "Making 'packages.html' ... done"), as soon as the first command is > entered at the command prompt the following warning appears: > > Warning messages: > 1: In is.na(x) : is.na() applied to non-(list or vector) of type 'NULL' > 2: In is.na(x) : is.na() applied to non-(list or vector) of type 'NULL' > > This happens on both R-3.4.4 and R-3.5.1 running in XFCE-Terminal and > Sakura. > > Is there a way to suppress/fix the reason for these warning messages? > > Cheers, > Ivailo > > _______________________________________________ > R-SIG-Debian mailing list > R-SIG-Debian@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-debian > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian