Error(s) in re-building vignettes:
--- re-building ‘a01_Single_event_of_interest.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-devel/CohortSurvival.Rcheck/vign_test/CohortSurvival/vignettes/a01_Single_event_of_interest_files/figure-html/unnamed-chunk-7-1.png
288x288 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 5691 bytes
Input file size = 6549 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 5120
  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 = 5120

Output IDAT size = 5120 bytes (571 bytes decrease)
Output file size = 5198 bytes (1351 bytes = 20.63% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-devel/CohortSurvival.Rcheck/vign_test/CohortSurvival/vignettes/a01_Single_event_of_interest_files/figure-html/unnamed-chunk-10-1.png
768x576 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 61758 bytes
Input file size = 61920 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 48888
  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 = 48888

Output IDAT size = 48888 bytes (12870 bytes decrease)
Output file size = 48966 bytes (12954 bytes = 20.92% decrease)

--- finished re-building ‘a01_Single_event_of_interest.Rmd’

--- re-building ‘a02_Competing_risk_survival.Rmd’ using rmarkdown

Quitting from lines  at lines 55-64 [unnamed-chunk-5] (a02_Competing_risk_survival.Rmd)
Error: processing vignette 'a02_Competing_risk_survival.Rmd' failed with diagnostics:
Can't rename columns that don't exist.
✖ Column `V2` doesn't exist.
--- failed re-building ‘a02_Competing_risk_survival.Rmd’

Warning: Connection is garbage-collected, use dbDisconnect() to avoid this.
SUMMARY: processing the following file failed:
  ‘a02_Competing_risk_survival.Rmd’

Error: Vignette re-building failed.
Execution halted