Error(s) in re-building vignettes:
--- re-building 'loo2-elpd.Rmd' using rmarkdown
Error: processing vignette 'loo2-elpd.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-elpd.Rmd'

--- re-building 'loo2-example.Rmd' using rmarkdown
Error: processing vignette 'loo2-example.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-example.Rmd'

--- re-building 'loo2-large-data.Rmd' using rmarkdown
Error: processing vignette 'loo2-large-data.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-large-data.Rmd'

--- re-building 'loo2-lfo.Rmd' using rmarkdown
Error: processing vignette 'loo2-lfo.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-lfo.Rmd'

--- re-building 'loo2-moment-matching.Rmd' using rmarkdown
Error: processing vignette 'loo2-moment-matching.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-moment-matching.Rmd'

--- re-building 'loo2-non-factorized.Rmd' using rmarkdown
Error: processing vignette 'loo2-non-factorized.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-non-factorized.Rmd'

--- re-building 'loo2-weights.Rmd' using rmarkdown
Error: processing vignette 'loo2-weights.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-weights.Rmd'

--- re-building 'loo2-with-rstan.Rmd' using rmarkdown
Error: processing vignette 'loo2-with-rstan.Rmd' failed with diagnostics:
DLL 'rlang' not found: maybe not installed for this architecture?
--- failed re-building 'loo2-with-rstan.Rmd'

SUMMARY: processing the following files failed:
  'loo2-elpd.Rmd' 'loo2-example.Rmd' 'loo2-large-data.Rmd'
  'loo2-lfo.Rmd' 'loo2-moment-matching.Rmd' 'loo2-non-factorized.Rmd'
  'loo2-weights.Rmd' 'loo2-with-rstan.Rmd'

Error: Vignette re-building failed.
Execution halted