Error(s) in re-building vignettes:
--- re-building ‘howto_relational_db.rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/editbl.Rcheck/vign_test/editbl/vignettes/howto_relational_db_files/figure-html/unnamed-chunk-6-1.png
700x698 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 8 bits/pixel, 244 colors in palette
Input IDAT size = 55608 bytes
Input file size = 55750 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19209
  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 = 19209

Output IDAT size = 19209 bytes (36399 bytes decrease)
Output file size = 20023 bytes (35727 bytes = 64.08% decrease)


Quitting from lines  at lines 186-191 [unnamed-chunk-8] (howto_relational_db.rmd)
Error: processing vignette 'howto_relational_db.rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘howto_relational_db.rmd’

--- re-building ‘howto_relational_db_dm.rmd’ using rmarkdown

Quitting from lines  at lines 213-218 [unnamed-chunk-9] (howto_relational_db_dm.rmd)
Error: processing vignette 'howto_relational_db_dm.rmd' failed with diagnostics:
cannot open the connection
--- failed re-building ‘howto_relational_db_dm.rmd’

--- re-building ‘howto_switch_from_DT.rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/editbl.Rcheck/vign_test/editbl/vignettes/howto_switch_from_DT_files/figure-html/unnamed-chunk-2-1.png
685x625 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 66151 bytes
Input file size = 66317 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 23403
  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 = 23403

Output IDAT size = 23403 bytes (42748 bytes decrease)
Output file size = 23473 bytes (42844 bytes = 64.60% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/editbl.Rcheck/vign_test/editbl/vignettes/howto_switch_from_DT_files/figure-html/unnamed-chunk-3-1.png
700x133 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 8 bits/pixel, 244 colors in palette
Input IDAT size = 15204 bytes
Input file size = 15286 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 5447
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 5444
  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 = 5444

Output IDAT size = 5444 bytes (9760 bytes decrease)
Output file size = 6258 bytes (9028 bytes = 59.06% decrease)

--- finished re-building ‘howto_switch_from_DT.rmd’

SUMMARY: processing the following files failed:
  ‘howto_relational_db.rmd’ ‘howto_relational_db_dm.rmd’

Error: Vignette re-building failed.
Execution halted