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

--- re-building ‘available-methods.Rmd’ using rmarkdown
--- finished re-building ‘available-methods.Rmd’

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

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

Quitting from broom.Rmd:74-76 [unnamed-chunk-3]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `ll()`:
! could not find function "ll"
---
Backtrace:
     ▆
  1. ├─generics::glance(lmfit)
  2. ├─broom:::glance.lm(lmfit)
  3. │ ├─base::with(...)
  4. │ └─base::with.default(...)
  5. │   └─base::eval(substitute(expr), data, enclos = parent.frame())
  6. │     └─base::eval(substitute(expr), data, enclos = parent.frame())
  7. │       └─tibble::tibble(...)
  8. │         └─tibble:::tibble_quos(xs, .rows, .name_repair)
  9. │           └─rlang::eval_tidy(xs[[j]], mask)
 10. ├─stats::AIC(x)
 11. └─stats:::AIC.default(x)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'broom.Rmd' failed with diagnostics:
could not find function "ll"
--- failed re-building ‘broom.Rmd’

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

Quitting from broom_and_dplyr.Rmd:164-182 [unnamed-chunk-15]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NULL
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'broom_and_dplyr.Rmd' failed with diagnostics:
ℹ In argument: `glanced = map(fit, glance)`.
Caused by error in `map()`:
ℹ In index: 1.
Caused by error in `ll()`:
! could not find function "ll"
--- failed re-building ‘broom_and_dplyr.Rmd’

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

SUMMARY: processing the following files failed:
  ‘broom.Rmd’ ‘broom_and_dplyr.Rmd’

Error: Vignette re-building failed.
Execution halted