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

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette ‘introduction.Rmd’ failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building ‘introduction.Rmd’

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
  ...
--- re-building ‘introduction.Rmd’ using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette ‘introduction.Rmd’ failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building ‘introduction.Rmd’

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
--- re-building ‘introduction.Rmd’ using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building ‘introduction.Rmd’

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
--- re-building 'introduction.Rmd' using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building 'introduction.Rmd'

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
  ...
--- re-building ‘introduction.Rmd’ using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette ‘introduction.Rmd’ failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building ‘introduction.Rmd’

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
  ...
--- re-building ‘introduction.Rmd’ using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette ‘introduction.Rmd’ failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building ‘introduction.Rmd’

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
--- re-building 'introduction.Rmd' using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building 'introduction.Rmd'

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

Error: Vignette re-building failed.
Execution halted
Error(s) in re-building vignettes:
--- re-building 'introduction.Rmd' using rmarkdown

Quitting from lines 44-48 [unnamed-chunk-3] (introduction.Rmd)
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `loadNamespace()`:
! there is no package called 'prettymapr'
--- failed re-building 'introduction.Rmd'

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

Error: Vignette re-building failed.
Execution halted