Error(s) in re-building vignettes:
  ...
--- re-building ‘phyloraster-vignette.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/phyloraster.Rcheck/vign_test/phyloraster/vignettes/phyloraster-vignette_files/figure-html/unnamed-chunk-6-1.png
480x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 11747 bytes
Input file size = 12617 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 11081
  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 = 11081

Output IDAT size = 11081 bytes (666 bytes decrease)
Output file size = 11159 bytes (1458 bytes = 11.56% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/phyloraster.Rcheck/vign_test/phyloraster/vignettes/phyloraster-vignette_files/figure-html/unnamed-chunk-8-1.png
480x480 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 27876 bytes
Input file size = 27990 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 22191
  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 = 22191

Output IDAT size = 22191 bytes (5685 bytes decrease)
Output file size = 22269 bytes (5721 bytes = 20.44% decrease)


Quitting from lines 162-171 [unnamed-chunk-10] (phyloraster-vignette.Rmd)
Error: processing vignette 'phyloraster-vignette.Rmd' failed with diagnostics:
there is no package called 'maps'
--- failed re-building ‘phyloraster-vignette.Rmd’

SUMMARY: processing the following file failed:
  ‘phyloraster-vignette.Rmd’

Error: Vignette re-building failed.
Execution halted