Error(s) in re-building vignettes:
--- re-building 'O1-workwithvmr.Rmd' using rmarkdown
Error: processing vignette 'O1-workwithvmr.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O1-workwithvmr.Rmd'

--- re-building 'O2-vmrFirstStep.Rmd' using rmarkdown
Error: processing vignette 'O2-vmrFirstStep.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O2-vmrFirstStep.Rmd'

--- re-building 'O3-vmrManagevmr.Rmd' using rmarkdown
Error: processing vignette 'O3-vmrManagevmr.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O3-vmrManagevmr.Rmd'

--- re-building 'O4-vmrManageBoxes.Rmd' using rmarkdown
Error: processing vignette 'O4-vmrManageBoxes.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O4-vmrManageBoxes.Rmd'

--- re-building 'O5-vmrManageProviders.Rmd' using rmarkdown
Error: processing vignette 'O5-vmrManageProviders.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O5-vmrManageProviders.Rmd'

--- re-building 'O6-vmrDev.Rmd' using rmarkdown
Error: processing vignette 'O6-vmrDev.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O6-vmrDev.Rmd'

--- re-building 'O7-vmrcicd.Rmd' using rmarkdown
Error: processing vignette 'O7-vmrcicd.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O7-vmrcicd.Rmd'

--- re-building 'O8-vmrResume.Rmd' using rmarkdown
Error: processing vignette 'O8-vmrResume.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'O8-vmrResume.Rmd'

SUMMARY: processing the following files failed:
  'O1-workwithvmr.Rmd' 'O2-vmrFirstStep.Rmd' 'O3-vmrManagevmr.Rmd'
  'O4-vmrManageBoxes.Rmd' 'O5-vmrManageProviders.Rmd' 'O6-vmrDev.Rmd'
  'O7-vmrcicd.Rmd' 'O8-vmrResume.Rmd'

Error: Vignette re-building failed.
Execution halted