Error(s) in re-building vignettes:
--- re-building 'DIF_vignette.Rmd' using rmarkdown

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

no column `person_id` provided, automatically generating unique person id's
Quitting from lines 51-64 (DIF_vignette.Rmd) 
Error: processing vignette 'DIF_vignette.Rmd' failed with diagnostics:
Graphics API version mismatch
--- failed re-building 'DIF_vignette.Rmd'

--- re-building 'Equating.Rmd' using rmarkdown
Quitting from lines 64-106 (Equating.Rmd) 
Error: processing vignette 'Equating.Rmd' failed with diagnostics:
Graphics API version mismatch
--- failed re-building 'Equating.Rmd'

--- re-building 'Plausible_Values.Rmd' using rmarkdown
Quitting from lines 90-93 (Plausible_Values.Rmd) 
Error: processing vignette 'Plausible_Values.Rmd' failed with diagnostics:
Graphics API version mismatch
--- failed re-building 'Plausible_Values.Rmd'

--- re-building 'Test_Individual_differences.Rmd' using rmarkdown
Quitting from lines 55-57 (Test_Individual_differences.Rmd) 
Error: processing vignette 'Test_Individual_differences.Rmd' failed with diagnostics:
Graphics API version mismatch
--- failed re-building 'Test_Individual_differences.Rmd'

--- re-building 'dexter.Rmd' using rmarkdown
Quitting from lines 129-130 (dexter.Rmd) 
Error: processing vignette 'dexter.Rmd' failed with diagnostics:
Graphics API version mismatch
--- failed re-building 'dexter.Rmd'

--- re-building 'profile-plots.Rmd' using rmarkdown
no column `person_id` provided, automatically generating unique person id's
Quitting from lines 52-58 (profile-plots.Rmd) 
Error: processing vignette 'profile-plots.Rmd' failed with diagnostics:
Graphics API version mismatch
--- failed re-building 'profile-plots.Rmd'

SUMMARY: processing the following files failed:
  'DIF_vignette.Rmd' 'Equating.Rmd' 'Plausible_Values.Rmd'
  'Test_Individual_differences.Rmd' 'dexter.Rmd' 'profile-plots.Rmd'

Error: Vignette re-building failed.
Execution halted