Error(s) in re-building vignettes:
  ...
--- re-building ‘SGDinference.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/SGDinference.Rcheck/vign_test/SGDinference/vignettes/SGDinference_files/figure-html/unnamed-chunk-8-1.png
288x288 pixels, 8 bits/pixel, 254 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 3809 bytes
Input file size = 4661 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 3250
  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 = 3250

Output IDAT size = 3250 bytes (559 bytes decrease)
Output file size = 3328 bytes (1333 bytes = 28.60% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/SGDinference.Rcheck/vign_test/SGDinference/vignettes/SGDinference_files/figure-html/unnamed-chunk-9-1.png
288x288 pixels, 8 bits/pixel, 255 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 4449 bytes
Input file size = 5304 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 3769
  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 = 3769

Output IDAT size = 3769 bytes (680 bytes decrease)
Output file size = 3847 bytes (1457 bytes = 27.47% decrease)


Quitting from lines 123-125 [unnamed-chunk-10] (SGDinference.Rmd)
Error: processing vignette 'SGDinference.Rmd' failed with diagnostics:
there is no package called 'conquer'
--- failed re-building ‘SGDinference.Rmd’

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

Error: Vignette re-building failed.
Execution halted