Error(s) in re-building vignettes:
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--- re-building ‘efa_cfa.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
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Attaching package: 'dplyr'

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Loading required namespace: GPArotation
This is lavaan 0.6-5
lavaan is BETA software! Please report any bugs.

Attaching package: 'lavaan'

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--- re-building ‘model_parameters.Rmd’ using rmarkdown
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Attaching package: 'dplyr'

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Loading required package: coda
Loading required package: Matrix
************
Welcome to BayesFactor 0.9.12-4.2. If you have questions, please contact Richard Morey (richarddmorey@gmail.com).

Type BFManual() to open the manual.
************
Loading required package: Rcpp
rstanarm (Version 2.19.2, packaged: 2019-10-01 20:20:33 UTC)
- Do not expect the default priors to remain the same in future rstanarm versions.
Thus, R scripts should specify priors explicitly, even if they are just the defaults.
- For execution on a local, multicore CPU with excess RAM we recommend calling
options(mc.cores = parallel::detectCores())
- bayesplot theme set to bayesplot::theme_default()
   * Does _not_ affect other ggplot2 plots
   * See ?bayesplot_theme_set for details on theme setting
Warning: Bulk Effective Samples Size (ESS) is too low, indicating posterior means and medians may be unreliable.
Running the chains for more iterations may help. See
http://mc-stan.org/misc/warnings.html#bulk-ess
Warning: Tail Effective Samples Size (ESS) is too low, indicating posterior variances and tail quantiles may be unreliable.
Running the chains for more iterations may help. See
http://mc-stan.org/misc/warnings.html#tail-ess
Possible multicollinearity between cyl and wt (r = 0.74). This might lead to inappropriate results. See 'Details' in '?rope'.
Loading 'brms' package (version 2.11.1). Useful instructions
can be found by typing help('brms'). A more detailed introduction
to the package is available through vignette('brms_overview').

Attaching package: 'brms'

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Compiling the C++ model
Warning in system(cmd, intern = !verbose) :
  running command '/home/ripley/R/cc/bin/R CMD SHLIB file11145f931e62.cpp 2> file11145f931e62.cpp.err.txt' had status 1 and error message 'Illegal seek'
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Error: processing vignette 'model_parameters.Rmd' failed with diagnostics:
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--- re-building ‘model_parameters_robust.Rmd’ using rmarkdown
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--- finished re-building ‘model_parameters_standardized.Rmd’

--- re-building ‘parameters_reduction.Rmd’ using rmarkdown
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--- finished re-building ‘parameters_reduction.Rmd’

--- re-building ‘parameters_selection.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
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Loading required package: Matrix
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SUMMARY: processing the following file failed:
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Error: Vignette re-building failed.
Execution halted