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

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

Quitting from Getting_started.Rmd:78-88 [run ARD_xxx]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `as.data.frame.integer()`:
! row names contain missing values
---
Backtrace:
     ▆
  1. ├─cards::ard_categorical(...)
  2. └─cards:::ard_categorical.data.frame(...)
  3.   ├─dplyr::mutate(ard_tabulate(data = data, ...), context = "categorical")
  4.   ├─cards::ard_tabulate(data = data, ...)
  5.   └─cards:::ard_tabulate.data.frame(data = data, ...)
  6.     └─cards:::.calculate_tabulation_statistics(...)
  7.       └─cards:::.process_denominator(...)
  8.         ├─rlang::rep_named(...)
  9.         │ └─rlang::set_names(rep_len(x, length(names)), names)
 10.         ├─tidyr::drop_na(...)
 11.         └─cards:::.table_as_df(...)
 12.           ├─dplyr::as_tibble(...)
 13.           └─tibble:::as_tibble.table(...)
 14.             ├─base::as.data.frame(x, stringsAsFactors = FALSE)
 15.             └─base::as.data.frame.table(x, stringsAsFactors = FALSE)
 16.               ├─base::eval(ex)
 17.               │ └─base::eval(ex)
 18.               └─base::data.frame(...)
 19.                 ├─base::as.data.frame(x[[i]], optional = TRUE)
 20.                 └─base::as.data.frame.integer(x[[i]], optional = TRUE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Getting_started.Rmd' failed with diagnostics:
row names contain missing values
--- failed re-building ‘Getting_started.Rmd’

--- re-building ‘apply-ARD.Rmd’ using rmarkdown
--- finished re-building ‘apply-ARD.Rmd’

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

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

Error: Vignette re-building failed.
Execution halted