Error(s) in re-building vignettes:
  ...
--- re-building ‘base-and-grid.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/netplot.Rcheck/vign_test/netplot/vignettes/base-and-grid_files/figure-html/baseplot-1.png
576x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 11267 bytes
Input file size = 12137 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 10178
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 10105
  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 = 10105

Output IDAT size = 10105 bytes (1162 bytes decrease)
Output file size = 10183 bytes (1954 bytes = 16.10% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/netplot.Rcheck/vign_test/netplot/vignettes/base-and-grid_files/figure-html/alltogether-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 50376 bytes
Input file size = 50526 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 39287
  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 = 39287

Output IDAT size = 39287 bytes (11089 bytes decrease)
Output file size = 39365 bytes (11161 bytes = 22.09% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/netplot.Rcheck/vign_test/netplot/vignettes/base-and-grid_files/figure-html/topright-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 52005 bytes
Input file size = 52155 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 40995
  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 = 40995

Output IDAT size = 40995 bytes (11010 bytes decrease)
Output file size = 41073 bytes (11082 bytes = 21.25% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/netplot.Rcheck/vign_test/netplot/vignettes/base-and-grid_files/figure-html/tilted-1.png
576x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 54721 bytes
Input file size = 54871 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 42398
  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 = 42398

Output IDAT size = 42398 bytes (12323 bytes decrease)
Output file size = 42476 bytes (12395 bytes = 22.59% decrease)

--- finished re-building ‘base-and-grid.Rmd’

--- re-building ‘examples.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/netplot.Rcheck/vign_test/netplot/vignettes/examples_files/figure-html/unnamed-chunk-3-1.png
672x672 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 208899 bytes
Input file size = 209277 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 163879
  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 = 163879

Output IDAT size = 163879 bytes (45020 bytes decrease)
Output file size = 163957 bytes (45320 bytes = 21.66% decrease)


Quitting from lines 91-101 [unnamed-chunk-4] (examples.Rmd)
Error: processing vignette 'examples.Rmd' failed with diagnostics:
there is no package called 'intergraph'
--- failed re-building ‘examples.Rmd’

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

Error: Vignette re-building failed.
Execution halted