Error(s) in re-building vignettes:
  ...
--- re-building ‘covid19br.Rmd’ using rmarkdown
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ──
✔ ggplot2 3.3.5     ✔ purrr   0.3.4
✔ tibble  3.1.5     ✔ dplyr   1.0.7
✔ tidyr   1.1.4     ✔ stringr 1.4.0
✔ readr   2.0.2     ✔ forcats 0.5.1
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
Downloading COVID-19 data from the official Brazilian repository: https://covid.saude.gov.br/
Please, be patient...
 Done!

Attaching package: 'pracma'

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

    cross

Downloading COVID-19 data from the official Brazilian repository: https://covid.saude.gov.br/
Please, be patient...
 Done!

Attaching package: 'plotly'

The following object is masked from 'package:ggplot2':

    last_plot

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

    filter

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

    layout

PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.
Quitting from lines 114-121 (covid19br.Rmd) 
Error: processing vignette 'covid19br.Rmd' failed with diagnostics:
invalid 'path' argument
--- failed re-building ‘covid19br.Rmd’

--- re-building ‘election2018.Rmd’ using rmarkdown
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ──
✔ ggplot2 3.3.5     ✔ purrr   0.3.4
✔ tibble  3.1.5     ✔ dplyr   1.0.7
✔ tidyr   1.1.4     ✔ stringr 1.4.0
✔ readr   2.0.2     ✔ forcats 0.5.1
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
Joining, by = c("region", "state", "city", "region_code", "state_code", "mesoregion_code", "microregion_code", "city_code", "pop")
Quitting from lines 20-41 (election2018.Rmd) 
Error: processing vignette 'election2018.Rmd' failed with diagnostics:
OGRCreateCoordinateTransformation(): transformation not available
--- failed re-building ‘election2018.Rmd’

--- re-building ‘maps.Rmd’ using rmarkdown
Pandoc is required to build R Markdown vignettes but not available. Please make sure it is installed.
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ──
✔ ggplot2 3.3.5     ✔ purrr   0.3.4
✔ tibble  3.1.5     ✔ dplyr   1.0.7
✔ tidyr   1.1.4     ✔ stringr 1.4.0
✔ readr   2.0.2     ✔ forcats 0.5.1
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
Downloading COVID-19 data from the official Brazilian repository: https://covid.saude.gov.br/
Please, be patient...
 Done!
Joining, by = c("region", "state", "city", "state_code", "city_code", "pop")
Quitting from lines 43-45 (maps.Rmd) 
Error: processing vignette 'maps.Rmd' failed with diagnostics:
OGRCreateCoordinateTransformation(): transformation not available
--- failed re-building ‘maps.Rmd’

SUMMARY: processing the following files failed:
  ‘covid19br.Rmd’ ‘election2018.Rmd’ ‘maps.Rmd’

Error: Vignette re-building failed.
Execution halted