How can I resolve this warning message: "Requires (indirectly) orphaned package: ‘influenceR’"?

When running devtools::check(), I receive the following warning message, but I do not know which function of my rrclust package is coming from influenceR.

❯ checking package dependencies ... WARNING

Requires (indirectly) orphaned package: ‘influenceR’

I tried to add influenceR in the Suggests: section of the DESCRIPTION, but the same message keeps appearing.

{influenceR} is suggested, at least indirectly via other packages, by a plethora of packages of which your repo uses {utils} and {stats}: *

tools::dependsOnPkgs('influenceR', recursive = TRUE,
                     dependencies = 'all') |>
length()
## [1] 724

The only strong dependence on influenceR seems to be incurred by {diagrammeR}:

> tools::dependsOnPkgs('influenceR', recursive = TRUE, dependencies = 'strong')
## [1] "DiagrammeR"

... so the indirect dependency perhaps happens somewhere among the plot or print functionalities in you code.

* as listed with list.functions.in.file() from {NCmisc}

The warning is legitimate, you might contact the maintainer of the DiagrammeR package to request a fix.

To know how to contact them you can go the CRAN page : https://cran.r-project.org/web/packages/DiagrammeR/index.html

There you see a field BugReports with the url of a GitHub repo so this is where you might post your issue.

Now if you need a quick fix, it might work to use a "Suggests" dependency rather than "Imports", in the DESCRIPTION file.

Then in each function that calls {DiagrammeR} you should add something like :

if (!requireNamespace("DiagrammeR", quietly = TRUE)) {
  stop("The package {DiagrammerR} is required for this action")
}

Or the rlang close equivalent :

if (!rlang::is_installed("DiagrammeR")) {
  stop("The package {DiagrammerR} is required for this action")
}

I suspect this will work because {dm} suggests {DiagrammeR} and doesn't have these issues as far as I know. The additional advantage is that users who don't have DiagrammeR installed or don't want to install it will still be able to enjoy the not diagram drawing functions of your package.

@I_O is right. diagrammeR depends on influenceR which does not have a maintainer anymore, see here: https://cran.r-project.org/web/packages/influenceR/index.html

CRAN claims the latest version of influenceR was just published not even 2 weeks ago. I suggest to contact the author, given that quite a few people use diagrammeR I'd contact the author of diagrammeR. He has been active and very helpful on R twitter in recent years.