Error(s) in re-building vignettes:
  ...
--- re-building ‘Basic_Usage.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/MOEADr.Rcheck/vign_test/MOEADr/vignettes/Basic_Usage_files/figure-html/unnamed-chunk-6-1.png
576x576 pixels, 8 bits/pixel, 255 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 6824 bytes
Input file size = 7679 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 6019
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 5986
  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 = 5986

Output IDAT size = 5986 bytes (838 bytes decrease)
Output file size = 6064 bytes (1615 bytes = 21.03% decrease)


Quitting from lines 106-114 [unnamed-chunk-7] (Basic_Usage.Rmd)
Error: processing vignette 'Basic_Usage.Rmd' failed with diagnostics:
there is no package called 'smoof'
--- failed re-building ‘Basic_Usage.Rmd’

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

Quitting from lines 243-278 [reshape2, ggplot2] (Comparison_Usage.Rmd)
Error: processing vignette 'Comparison_Usage.Rmd' failed with diagnostics:
there is no package called 'reshape2'
--- failed re-building ‘Comparison_Usage.Rmd’

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

Quitting from lines 70-94 [unnamed-chunk-2] (Modification_Usage.Rmd)
Error: processing vignette 'Modification_Usage.Rmd' failed with diagnostics:
there is no package called 'smoof'
--- failed re-building ‘Modification_Usage.Rmd’

--- re-building ‘problem-definition.Rmd’ using rmarkdown
--- finished re-building ‘problem-definition.Rmd’

--- re-building ‘writing-functions-for-moeadr.Rmd’ using rmarkdown
--- finished re-building ‘writing-functions-for-moeadr.Rmd’

SUMMARY: processing the following files failed:
  ‘Basic_Usage.Rmd’ ‘Comparison_Usage.Rmd’ ‘Modification_Usage.Rmd’

Error: Vignette re-building failed.
Execution halted