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
700x133 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 8 bits/pixel, 244 colors in palette
Input IDAT size = 13260 bytes
Input file size = 13342 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 4672
  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 = 4672

Output IDAT size = 4672 bytes (8588 bytes decrease)
Output file size = 5486 bytes (7856 bytes = 58.88% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/editbl.Rcheck/vign_test/editbl/vignettes/howto_relational_db_files/figure-html/unnamed-chunk-8-1.png
700x100 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 8 bits/pixel, 220 colors in palette
Input IDAT size = 8731 bytes
Input file size = 8813 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 2998
  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 = 2998

Output IDAT size = 2998 bytes (5733 bytes decrease)
Output file size = 3740 bytes (5073 bytes = 57.56% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/editbl.Rcheck/vign_test/editbl/vignettes/howto_relational_db_files/figure-html/unnamed-chunk-10-1.png
700x74 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 2652 bytes
Input file size = 2722 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 934
  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 = 934

Output IDAT size = 934 bytes (1718 bytes decrease)
Output file size = 1004 bytes (1718 bytes = 63.12% decrease)

--- finished 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 file failed:
  ‘howto_relational_db_dm.rmd’

Error: Vignette re-building failed.
Execution halted