Error(s) in re-building vignettes:
--- re-building 'covid19br.Rmd' using rmarkdown
-- Attaching packages --------------------------------------- tidyverse 1.3.1 --
v ggplot2 3.3.6     v purrr   0.3.4
v tibble  3.1.7     v dplyr   1.0.9
v tidyr   1.2.0     v stringr 1.4.0
v readr   2.1.2     v forcats 0.5.1
-- Conflicts ------------------------------------------ tidyverse_conflicts() --
x dplyr::filter() masks stats::filter()
x dplyr::lag()    masks stats::lag()
Quitting from lines 36-50 (covid19br.Rmd) 
Error: processing vignette 'covid19br.Rmd' failed with diagnostics:
`data` must be a data frame, or other object coercible by `fortify()`, not an S3 object with class try-error.
--- failed re-building 'covid19br.Rmd'

--- re-building 'election2018.Rmd' using rmarkdown
-- Attaching packages --------------------------------------- tidyverse 1.3.1 --
v ggplot2 3.3.6     v purrr   0.3.4
v tibble  3.1.7     v dplyr   1.0.9
v tidyr   1.2.0     v stringr 1.4.0
v readr   2.1.2     v forcats 0.5.1
-- Conflicts ------------------------------------------ tidyverse_conflicts() --
x dplyr::filter() masks stats::filter()
x dplyr::lag()    masks stats::lag()
Joining, by = c("region", "state", "city", "region_code", "state_code",
"mesoregion_code", "microregion_code", "city_code", "pop")
--- finished re-building 'election2018.Rmd'

--- re-building 'maps.Rmd' using rmarkdown
-- Attaching packages --------------------------------------- tidyverse 1.3.1 --
v ggplot2 3.3.6     v purrr   0.3.4
v tibble  3.1.7     v dplyr   1.0.9
v tidyr   1.2.0     v stringr 1.4.0
v readr   2.1.2     v forcats 0.5.1
-- Conflicts ------------------------------------------ tidyverse_conflicts() --
x dplyr::filter() masks stats::filter()
x 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")
Downloading COVID-19 data from the official Brazilian repository: https://covid.saude.gov.br/
Please, be patient...
Done!
Joining, by = c("region", "state", "pop", "state_code")
--- finished re-building 'maps.Rmd'

SUMMARY: processing the following file failed:
  'covid19br.Rmd'

Error: Vignette re-building failed.
Execution halted