Error(s) in re-building vignettes:
  ...
--- re-building ‘introduction_to_dnapath.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-3-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 83472 bytes
Input file size = 83670 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 76968
  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 = 76968

Output IDAT size = 76968 bytes (6504 bytes decrease)
Output file size = 77046 bytes (6624 bytes = 7.92% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-7-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 25119 bytes
Input file size = 25233 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19956
  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 = 19956

Output IDAT size = 19956 bytes (5163 bytes decrease)
Output file size = 20034 bytes (5199 bytes = 20.60% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-9-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 27276 bytes
Input file size = 27390 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21547
  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 = 21547

Output IDAT size = 21547 bytes (5729 bytes decrease)
Output file size = 21625 bytes (5765 bytes = 21.05% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-12-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 10479 bytes
Input file size = 10569 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 7984
  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 = 7984

Output IDAT size = 7984 bytes (2495 bytes decrease)
Output file size = 8062 bytes (2507 bytes = 23.72% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-13-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 10479 bytes
Input file size = 10569 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 7984
  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 = 7984

Output IDAT size = 7984 bytes (2495 bytes decrease)
Output file size = 8062 bytes (2507 bytes = 23.72% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-14-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 25023 bytes
Input file size = 25137 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19685
  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 = 19685

Output IDAT size = 19685 bytes (5338 bytes decrease)
Output file size = 19763 bytes (5374 bytes = 21.38% decrease)

** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/dnapath.Rcheck/vign_test/dnapath/vignettes/introduction_to_dnapath_files/figure-html/unnamed-chunk-15-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 69314 bytes
Input file size = 69488 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 55130
  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 = 55130

Output IDAT size = 55130 bytes (14184 bytes decrease)
Output file size = 55208 bytes (14280 bytes = 20.55% decrease)

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

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

Quitting from lines  at lines 126-135 [unnamed-chunk-8] (package_data.Rmd)
Error: processing vignette 'package_data.Rmd' failed with diagnostics:
SSL peer certificate or SSH remote key was not OK: [www.linkedomics.org] server certificate verification failed. CAfile: none CRLfile: none
--- failed re-building ‘package_data.Rmd’

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

Error: Vignette re-building failed.
Execution halted