Error(s) in re-building vignettes:
  ...
--- re-building ‘skylight.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/skylight.Rcheck/vign_test/skylight/vignettes/skylight_files/figure-html/unnamed-chunk-4-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 16299 bytes
Input file size = 16389 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 13821
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 13821

Output IDAT size = 13821 bytes (2478 bytes decrease)
Output file size = 13899 bytes (2490 bytes = 15.19% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/skylight.Rcheck/vign_test/skylight/vignettes/skylight_files/figure-html/unnamed-chunk-5-1.png
288x288 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 4743 bytes
Input file size = 5601 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 4417
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 4417

Output IDAT size = 4417 bytes (326 bytes decrease)
Output file size = 4495 bytes (1106 bytes = 19.75% decrease)

--- finished re-building ‘skylight.Rmd’

--- re-building ‘skylight_advanced.Rmd’ using rmarkdown

Quitting from lines 66-81 [unnamed-chunk-2] (skylight_advanced.Rmd)
Error: processing vignette 'skylight_advanced.Rmd' failed with diagnostics:
there is no package called 'terra'
--- failed re-building ‘skylight_advanced.Rmd’

SUMMARY: processing the following file failed:
  ‘skylight_advanced.Rmd’

Error: Vignette re-building failed.
Execution halted