On 19.10.2020 17:04, CRAN submission wrote:

Dear maintainer,
 
package airGRteaching_0.2.9.23.tar.gz does not pass the incoming checks automatically, please see the following pre-tests:
Windows: <https://win-builder.r-project.org/incoming_pretest/airGRteaching_0.2.9.23_20201019_165555/Windows/00check.log>
Status: 1 WARNING, 1 NOTE
Debian: <https://win-builder.r-project.org/incoming_pretest/airGRteaching_0.2.9.23_20201019_165555/Debian/00check.log>
Status: 1 WARNING, 1 NOTE
 
Last released version's CRAN status: OK: 12
See: <https://CRAN.R-project.org/web/checks/check_results_airGRteaching.html>
 
CRAN Web: <https://cran.r-project.org/package=airGRteaching>
 
Please fix all problems and resubmit a fixed version via the webform.
If you are not sure how to fix the problems shown, please ask for help on the R-package-devel mailing list:
<https://stat.ethz.ch/mailman/listinfo/r-package-devel>
If you are fairly certain the rejection is a false positive, please reply-all to this message and explain.
 
More details are given in the directory:
<https://win-builder.r-project.org/incoming_pretest/airGRteaching_0.2.9.23_20201019_165555/>
The files will be removed after roughly 7 days.
 
No strong reverse dependencies to be checked.
 
Best regards,
CRAN teams' auto-check service
Flavor: r-devel-linux-x86_64-debian-gcc, r-devel-windows-ix86+x86_64
Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: 'Olivier Delaigue <airGR@inrae.fr>'
  
  Found the following (possibly) invalid URLs:
    URL: https://hydrogr.github.io/airGRteaching (moved to https://hydrogr.github.io/airGRteaching/)
      From: README.md
      Status: 200
      Message: OK
    URL: https://webgr.inrae.fr/en/ (moved to https://webgr.inrae.fr/en/home/)
      From: README.md
      Status: 200
      Message: OK

Flavor: r-devel-windows-ix86+x86_64
Check: re-building of vignette outputs, Result: WARNING
  Error(s) in re-building vignettes:
  --- re-building 'get_started.rmd' using rmarkdown
  Error: processing vignette 'get_started.rmd' failed with diagnostics:
  The vignette engine knitr::rmarkdown is not available because the rmarkdown package is not available. Did you forget to add it to Suggests in DESCRIPTION? Please see https://github.com/yihui/knitr/issues/1864 for more information.
  --- failed re-building 'get_started.rmd'
  
  SUMMARY: processing the following file failed:
    'get_started.rmd'
  
  Error: Vignette re-building failed.
  Execution halted

Flavor: r-devel-linux-x86_64-debian-gcc
Check: re-building of vignette outputs, Result: WARNING
  Error(s) in re-building vignettes:
    ...
  --- re-building 'get_started.rmd' using rmarkdown
  Error: processing vignette 'get_started.rmd' failed with diagnostics:
  The vignette engine knitr::rmarkdown is not available because the rmarkdown package is not available. Did you forget to add it to Suggests in DESCRIPTION? Please see https://github.com/yihui/knitr/issues/1864 for more information.
  --- failed re-building 'get_started.rmd'
  
  SUMMARY: processing the following file failed:
    'get_started.rmd'
  
  Error: Vignette re-building failed.
  Execution halted