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

Attaching package: 'dlookr'

The following object is masked from 'package:base':

    transform


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Warning: Passed a group with no more than five observations.
(Urban == NA)
Loading required package: DBI
Loading required package: RSQLite
Loading required package: dbplyr

Attaching package: 'dbplyr'

The following objects are masked from 'package:dplyr':

    ident, sql

--- finished re-building ‘EDA.Rmd’

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

Attaching package: 'dlookr'

The following object is masked from 'package:base':

    transform


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Loading required package: DBI
Loading required package: RSQLite
Loading required package: dbplyr

Attaching package: 'dbplyr'

The following objects are masked from 'package:dplyr':

    ident, sql

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

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

Attaching package: 'dlookr'

The following object is masked from 'package:base':

    transform


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

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

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

Attaching package: 'dlookr'

The following object is masked from 'package:base':

    transform


Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Quitting from lines 165-171 (transformation.Rmd) 
Error: processing vignette 'transformation.Rmd' failed with diagnostics:
Problem with `mutate()` input `Income_imp`.
✖ Package 'DMwR' needed for this function to work. Please install it.
ℹ Input `Income_imp` is `imputate_na(carseats, Income, US, method = "knn")`.
--- failed re-building ‘transformation.Rmd’

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

Error: Vignette re-building failed.
Execution halted