Error(s) in re-building vignettes:
--- re-building ‘Example_abc.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/treestats.Rcheck/vign_test/treestats/vignettes/Example_abc_files/figure-html/plot_simpl2-1.png
576x576 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 13078 bytes
Input file size = 13948 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 11302
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 11263
  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 = 1  f = 0		IDAT size = 11263

Output IDAT size = 11263 bytes (1815 bytes decrease)
Output file size = 11341 bytes (2607 bytes = 18.69% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/treestats.Rcheck/vign_test/treestats/vignettes/Example_abc_files/figure-html/plot_simple-1.png
576x576 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 21129 bytes
Input file size = 22011 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19680
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 19482
  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 = 1  f = 0		IDAT size = 19482

Output IDAT size = 19482 bytes (1647 bytes decrease)
Output file size = 19560 bytes (2451 bytes = 11.14% decrease)


Quitting from lines 86-102 [sim_ddd] (Example_abc.Rmd)
Error: processing vignette 'Example_abc.Rmd' failed with diagnostics:
variable 7 appears to be constant within groups
--- failed re-building ‘Example_abc.Rmd’

--- re-building ‘Example_data.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/treestats.Rcheck/vign_test/treestats/vignettes/Example_data_files/figure-html/plot_size-1.png
576x576 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 7446 bytes
Input file size = 8304 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 6569
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 6549
  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 = 1  f = 0		IDAT size = 6549

Output IDAT size = 6549 bytes (897 bytes decrease)
Output file size = 6627 bytes (1677 bytes = 20.20% decrease)


Quitting from lines 61-64 [corr] (Example_data.Rmd)
Error: processing vignette 'Example_data.Rmd' failed with diagnostics:
NA/NaN/Inf in foreign function call (arg 10)
--- failed re-building ‘Example_data.Rmd’

--- re-building ‘Getting_started.Rmd’ using rmarkdown
--- finished re-building ‘Getting_started.Rmd’

--- re-building ‘Speed_improvement.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/treestats.Rcheck/vign_test/treestats/vignettes/Speed_improvement_files/figure-html/unnamed-chunk-2-1.png
576x576 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 11064 bytes
Input file size = 11934 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 10269
  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 = 10269

Output IDAT size = 10269 bytes (795 bytes decrease)
Output file size = 10347 bytes (1587 bytes = 13.30% decrease)

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

SUMMARY: processing the following files failed:
  ‘Example_abc.Rmd’ ‘Example_data.Rmd’

Error: Vignette re-building failed.
Execution halted