Error(s) in re-building vignettes:
--- re-building 'allele-haplotype.Rmd' using rmarkdown
-- Attaching packages --------------------------------------- tidyverse 1.3.0 --
v ggplot2 3.3.3     v dplyr   1.0.5
v tibble  3.1.0     v stringr 1.4.0
v tidyr   1.1.3     v forcats 0.5.1
v purrr   0.3.4     
-- Conflicts ------------------------------------------ tidyverse_conflicts() --
x dplyr::filter() masks stats::filter()
x dplyr::lag()    masks stats::lag()
--- finished re-building 'allele-haplotype.Rmd'

--- re-building 'eplet-mm.Rmd' using rmarkdown
-- Attaching packages --------------------------------------- tidyverse 1.3.0 --
v ggplot2 3.3.3     v purrr   0.3.4
v tibble  3.1.0     v dplyr   1.0.5
v tidyr   1.1.3     v stringr 1.4.0
v readr   1.4.0     v forcats 0.5.1
-- Conflicts ------------------------------------------ tidyverse_conflicts() --
x dplyr::filter() masks stats::filter()
x dplyr::lag()    masks stats::lag()
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Quitting from lines 71-88 (eplet-mm.Rmd) 
Error: processing vignette 'eplet-mm.Rmd' failed with diagnostics:
invalid number of 'breaks'
--- failed re-building 'eplet-mm.Rmd'

SUMMARY: processing the following file failed:
  'eplet-mm.Rmd'

Error: Vignette re-building failed.
Execution halted