For ks, if you look here: https://github.com/sbgraves237/sos/runs/2650960959?check_suite_focus=true

in the "Install Dependencies" section, you'll see these errors:

trying URL 'https://cloud.r-project.org/src/contrib/ks_1.13.0.tar.gz'
Content type 'application/x-gzip' length 1076044 bytes (1.0 MB)
==================================================
downloaded 1.0 MB

* installing *source* package ‘plot3D’ ...
** package ‘plot3D’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
Error: Error: .onLoad failed in loadNamespace() for 'tcltk', details:
ERROR: lazy loading failed for package ‘plot3D’
  call: fun(libname, pkgname)
* removing ‘/Users/runner/work/_temp/Library/plot3D’
  error: X11 library is missing: install XQuartz from www.xquartz.org
Execution halted
ERROR: dependency ‘plot3D’ is not available for package ‘ks’
* removing ‘/Users/runner/work/_temp/Library/ks’

so the problem is really with plot3D, and indirectly with rgl and tcltk. I'm familiar with problems like that! Here are the lines from the rgl workflow to work around the XQuartz issues:

    env:
      R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
      _R_CHECK_FORCE_SUGGESTS_: false
      RSPM: ${{ matrix.config.rspm }}
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
      RGL_USE_NULL: true

The last line might be enough for you, but I think the 2nd line

_R_CHECK_FORCE_SUGGESTS_: false

may be more important: you use ks, it imports plot3D, plot3D imports misc3d, but it only suggests rgl and tkrplot: so that would let ks load without XQuartz support.

Duncan Murdoch

On 23/05/2021 3:09 p.m., Spencer Graves wrote:
Hi, Duncan et al.:


          Thanks again to Duncan.  Your suggestions worked for the LaTeX
problem, though it required multiple iterations, adding a total of 7
different "tinytex::parse_install" clauses to overcome other LaTeX and
pdfTeX errors.


          However, macOS still says, "there is no package called 'ks'", even
though I added 'install.packages("ks")' as you suggested -- to three
different places, all without solving the problem.  I posted this
question to
"https://community.rstudio.com/new-topic?category=Package%20development&tags=github-actions";,
as suggested in line 2 of "~/.github/workflows/R-CMD-check.yaml".  See:


          Spencer


On 5/23/21 11:03 AM, Duncan Murdoch wrote:
This page

https://bookdown.org/yihui/rmarkdown-cookbook/install-latex-pkgs.html

suggests that executing this in R should fix the tikz issue:

tinytex::parse_install(
    text = "! LaTeX Error: File `tikz.sty' not found."
)

The "ks" message looks like a missing R package rather than a missing
LaTeX package, so running install.packages("ks") would fix it.

So the only question is how to do these things in a Github action.  I
don't know if there's a pre-made recipe for this, but this one should do
it:

        - name: Install tikz.tex and ks
          run: |
            install.packages(c('tinytex', 'ks')) # Maybe tinytex is
already there?
            tinytex::parse_install(
               text = "! LaTeX Error: File `tikz.sty' not found."
            )
          shell: Rscript {0}

Duncan Murdoch

On 23/05/2021 11:28 a.m., Spencer Graves wrote:
Hi, Duncan et al.:


       Thanks very much to Duncan for his suggestion.  I did added the
line
Duncan suggested in three slightly different places.  That fixed the
problems with missing tex and pdflatex, but exposed two new problems:


       On Windows and ubuntu (both release and devel) I now get:


LaTeX Error: File `tikz.sty' not found.


       On macOS, I got a different error:


there is no package called 'ks'


       I added "ks" to "suggests" in DESCRIPTON but still got "no package
called 'ks'.  And I studied README in https://github.com/r-lib/actions,
and I did some other searches without figuring out how to fix
"`tikz.sty' not found."


       For more details, see:


https://github.com/sbgraves237/sos


       Suggestions?
       Thanks,
       Spencer


On 5/23/21 4:43 AM, Duncan Murdoch wrote:
On 22/05/2021 10:05 p.m., Spencer Graves wrote:
Hello:


        What do you suggest I do to enable GitHub Action to process
"sos.Rnw"
properly?


        The development version of my "sos" package passes "R CMD
check" on
my Mac but fails in all four platforms under GitHub Action on


https://github.com/sbgraves237/sos


        The error messages on macOS and Ubuntu release and devel all
seems
the same:


              * Error: processing vignette 'sos.Rnw' failed with
diagnostics:
Running 'texi2dvi' on 'sos.tex' failed.  Messages: You don't have a
working TeX binary (tex) installed anywhere in your PATH, and texi2dvi
cannot proceed without one.


        The error message under Windows seemed crudely similar but
different:


              * Error: processing vignette 'sos.Rnw' failed with
diagnostics:
pdflatex is not available


        What do you suggest?

The virtual machines that run Github actions have lots of tools
installed, but apparently not LaTeX.  So you need to figure out the
"step" to install it.  I'm not currently using Rnw with Github actions,
but by looking at the README for https://github.com/r-lib/actions, I'm
pretty sure all you need is to add

     - uses: r-lib/actions/setup-tinytex@v1

somewhere after

     - uses: actions/checkout@master


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