Error(s) in re-building vignettes:
  ...
--- re-building ‘warbleR_workflow_01.Rmd’ using rmarkdown
Loading required package: maps
Loading required package: tuneR
Loading required package: seewave
Loading required package: NatureSounds

NOTE: functions are being renamed (run 'print(new_function_names)' to see new names). Both old and new names are available in this version 
 Please see citation('warbleR') for use in publication
Quitting from lines 82-110 (warbleR_workflow_01.Rmd) 
Error: processing vignette 'warbleR_workflow_01.Rmd' failed with diagnostics:
there is no package called 'Rraven'
--- failed re-building ‘warbleR_workflow_01.Rmd’

--- re-building ‘warbleR_workflow_02.Rmd’ using rmarkdown
Loading required package: maps
Loading required package: tuneR
Loading required package: seewave
Loading required package: NatureSounds

NOTE: functions are being renamed (run 'print(new_function_names)' to see new names). Both old and new names are available in this version 
 Please see citation('warbleR') for use in publication
Quitting from lines 66-94 (warbleR_workflow_02.Rmd) 
Error: processing vignette 'warbleR_workflow_02.Rmd' failed with diagnostics:
there is no package called 'Rraven'
--- failed re-building ‘warbleR_workflow_02.Rmd’

--- re-building ‘warbleR_workflow_03.Rmd’ using rmarkdown
Loading required package: maps
Loading required package: tuneR
Loading required package: seewave
Loading required package: NatureSounds

NOTE: functions are being renamed (run 'print(new_function_names)' to see new names). Both old and new names are available in this version 
 Please see citation('warbleR') for use in publication
Quitting from lines 81-109 (warbleR_workflow_03.Rmd) 
Error: processing vignette 'warbleR_workflow_03.Rmd' failed with diagnostics:
there is no package called 'Rraven'
--- failed re-building ‘warbleR_workflow_03.Rmd’

SUMMARY: processing the following files failed:
  ‘warbleR_workflow_01.Rmd’ ‘warbleR_workflow_02.Rmd’
  ‘warbleR_workflow_03.Rmd’

Error: Vignette re-building failed.
Execution halted