Error(s) in re-building vignettes:
  ...
--- re-building ‘a_warbleR.Rmd’ using rmarkdown
--- finished re-building ‘a_warbleR.Rmd’

--- re-building ‘b_annotation_data_format.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/warbleR.Rcheck/vign_test/warbleR/vignettes/b_annotation_data_format_files/figure-html/annotations_8.22-1.png
200x140 pixels, 8 bits/pixel, 210 colors in palette
Input IDAT size = 5527 bytes
Input file size = 6247 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 5412
  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 = 5412

Output IDAT size = 5412 bytes (115 bytes decrease)
Output file size = 6132 bytes (115 bytes = 1.84% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/warbleR.Rcheck/vign_test/warbleR/vignettes/b_annotation_data_format_files/figure-html/annotations_8.23-1.png
200x140 pixels, 8 bits/pixel, 112 colors in palette
Input IDAT size = 12301 bytes
Input file size = 12739 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 12305
  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
                               
Output IDAT size = 12301 bytes (no change)
Output file size = 12727 bytes (12 bytes = 0.09% decrease)


Quitting from lines 531-543 [unnamed-chunk-12] (b_annotation_data_format.Rmd)
Error: processing vignette 'b_annotation_data_format.Rmd' failed with diagnostics:
cannot open the connection to 'https://www.xeno-canto.org/api/2/recordings?query=nr:15607'
--- failed re-building ‘b_annotation_data_format.Rmd’

--- re-building ‘c_warbleR_workflow_02.Rmd’ using rmarkdown
--- finished re-building ‘c_warbleR_workflow_02.Rmd’

--- re-building ‘d_warbleR_workflow_03.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/warbleR.Rcheck/vign_test/warbleR/vignettes/d_warbleR_workflow_03_files/figure-html/unnamed-chunk-30-1.png
1100x770 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 34060 bytes
Input file size = 34186 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 26645
  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 = 26645

Output IDAT size = 26645 bytes (7415 bytes decrease)
Output file size = 26723 bytes (7463 bytes = 21.83% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/warbleR.Rcheck/vign_test/warbleR/vignettes/d_warbleR_workflow_03_files/figure-html/unnamed-chunk-31-1.png
1100x770 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 32448 bytes
Input file size = 32562 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25179
  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 = 25179

Output IDAT size = 25179 bytes (7269 bytes decrease)
Output file size = 25257 bytes (7305 bytes = 22.43% decrease)

--- finished re-building ‘d_warbleR_workflow_03.Rmd’

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

Error: Vignette re-building failed.
Execution halted