[R-pkg-devel] Warning about ggplot although no ggplot is used anywhere in the package

[Duncan Murdoch]

On 21/09/2022 5:09 p.m., Riko Kelter wrote:
> Hello everyone,
> 
> I ran R CMD check --as-cran without any errors. However, when I run a check on the current version of r-devel I obtain the following strange error about some ggplot function:
> * installing *source* package 'fbst' ...
> ** using staged installation
> ** R
> ** inst
> ** byte-compile and prepare package for lazy loading
> Warning message:
> The `size` argument of `element_line()` is deprecated as of ggplot2 3.4.0.
> Please use the `linewidth` argument instead.
> The weird thing is: Although my package fbst depends on the package rstanarm which itself imports ggplot,
> (1) no package code uses ggplot in any form,
> (2) no examples use any ggplot commands and
> (3) no vignette uses any ggplot command.
> 
> Logs are available at https://win-builder.r-project.org/CX36AbHDU6Tl/
> I am thankful for any suggestion why this error occurs.
> All the best and kind regards,
> Riko

Could you provide the source for the package?  I can see the DESCRIPTION 
file at win-builder, but can't install it myself since I don't use Windows.

Duncan Murdoch