Error(s) in re-building vignettes:
  ...
--- re-building ‘blackwhitefigures.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Install package "strengejacke" from GitHub (`devtools::install_github("strengejacke/strengejacke")`) to load all sj-packages at once!
Data were 'prettified'. Consider using `terms="barthel [all]"` to get smooth plots.
--- finished re-building ‘blackwhitefigures.Rmd’

--- re-building ‘custplot.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Scale for 'colour' is already present. Adding another scale for
'colour', which will replace the existing scale.
--- finished re-building ‘custplot.Rmd’

--- re-building ‘plot_interactions.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
--- finished re-building ‘plot_interactions.Rmd’

--- re-building ‘plot_likert_scales.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.

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

Learn more about sjPlot with 'browseVignettes("sjPlot")'.
--- finished re-building ‘plot_likert_scales.Rmd’

--- re-building ‘plot_marginal_effects.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
#refugeeswelcome
Model has log-transformed predictors. Consider using `terms="hp [exp]"` to back-transform scale.
Model has log-transformed predictors. Consider using `terms="hp [exp]"` to back-transform scale.
Package `effects` is not available, but needed for `ggeffect()`. Either install package `effects`, or use `ggpredict()`. Calling `ggpredict()` now.FALSE
--- finished re-building ‘plot_marginal_effects.Rmd’

--- re-building ‘plot_model_estimates.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Learn more about sjPlot with 'browseVignettes("sjPlot")'.
rstanarm (Version 2.18.2, packaged: 2018-11-08 22:19:38 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())
- Plotting theme set to bayesplot::theme_default().
Quitting from lines 151-171 (plot_model_estimates.Rmd) 
Error: processing vignette 'plot_model_estimates.Rmd' failed with diagnostics:
object 'conf.low50' not found
--- failed re-building ‘plot_model_estimates.Rmd’

--- re-building ‘sjtitemanalysis.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.

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

--- finished re-building ‘sjtitemanalysis.Rmd’

--- re-building ‘tab_bayes.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Install package "strengejacke" from GitHub (`devtools::install_github("strengejacke/strengejacke")`) to load all sj-packages at once!
Loading required package: Rcpp
Loading 'brms' package (version 2.10.0). Useful instructions
can be found by typing help('brms'). A more detailed introduction
to the package is available through vignette('brms_overview').
Quitting from lines 64-65 (tab_bayes.Rmd) 
Error: processing vignette 'tab_bayes.Rmd' failed with diagnostics:
Column `conf.low50` not found in `.data`
Backtrace:
     █
  1. ├─tools:::.buildOneVignette(...)
  2. │ ├─base::tryCatch(...)
  3. │ │ └─base:::tryCatchList(expr, classes, parentenv, handlers)
  4. │ │   └─base:::tryCatchOne(expr, names, parentenv, handlers[[1L]])
  5. │ │     └─base:::doTryCatch(return(expr), name, parentenv, handler)
  6. │ └─engine$weave(file, quiet = quiet, encoding = enc)
  7. │   └─knitr:::vweave(...)
  8. │     └─(if (grepl("\\.[Rr]md$", file)) knit2html_v1 else if (grepl("\\.[Rr]rst$", ...
  9. │       └─knitr::knit2html(..., force_v1 = TRUE)
 10. │         └─knitr::knit(input, text = text, envir = envir, quiet = quiet)
 11. │           └─knitr:::process_file(text, output)
 12. │             ├─base::withCallingHandlers(...)
 13. │             ├─knitr:::process_group(group)
 14. │             └─knitr:::process_group.block(group)
 15. │               └─knitr:::call_block(x)
 16. │                 └─knitr:::block_exec(params)
 17. │                   ├─knitr:::in_dir(...)
 18. │                   └─knitr:::evaluate(...)
 19. │                     └─evaluate::evaluate(...)
 20. │                       └─evaluate:::evaluate_call(...)
 21. │                         ├─evaluate:::timing_fn(...)
 22. │                         ├─base:::handle(...)
 23. │                         ├─base::withCallingHandlers(...)
 24. │                         ├─base::withVisible(eval(expr, envir, enclos))
 25. │                         └─base::eval(expr, envir, enclos)
 26. │                           └─base::eval(expr, envir, enclos)
 27. ├─sjPlot::tab_model(m1)
 28. │ └─purrr::map2(...)
 29. │   └─sjPlot:::.f(.x[[1L]], .y[[1L]], ...)
 30. │     └─`%>%`(...)
 31. │       ├─base::withVisible(eval(quote(`_fseq`(`_lhs`)), env, env))
 32. │       └─base::eval(quote(`_fseq`(`_lhs`)), env, env)
 33. │         └─base::eval(quote(`_fseq`(`_lhs`)), env, env)
 34. │           └─sjPlot:::`_fseq`(`_lhs`)
 35. │             └─magrittr::freduce(value, `_function_list`)
 36. │               └─function_list[[i]](value)
 37. │                 ├─dplyr::mutate(...)
 38. │                 └─dplyr:::mutate.data.frame(...)
 39. │                   ├─base::as.data.frame(mutate(tbl_df(.data), ...))
 40. │                   ├─dplyr::mutate(tbl_df(.data), ...)
 41. │                   └─dplyr:::mutate.tbl_df(tbl_df(.data), ...)
 42. │                     └─dplyr:::mutate_impl(.data, dots, caller_env())
 43. ├─base::sprintf(...)
 44. ├─conf.low50
 45. ├─rlang:::`$.rlang_data_pronoun`(.data, conf.low50)
 46. │ └─rlang:::data_pronoun_get(x, nm)
 47. └─rlang:::abort_data_pronoun(x)
--- failed re-building ‘tab_bayes.Rmd’

--- re-building ‘tab_mixed.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Loading required package: Matrix

Attaching package: 'nlme'

The following object is masked from 'package:lme4':

    lmList

--- finished re-building ‘tab_mixed.Rmd’

--- re-building ‘tab_model_estimates.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Learn more about sjmisc with 'browseVignettes("sjmisc")'.
Classes and Methods for R developed in the
Political Science Computational Laboratory
Department of Political Science
Stanford University
Simon Jackman
hurdle and zeroinfl functions by Achim Zeileis
--- finished re-building ‘tab_model_estimates.Rmd’

--- re-building ‘table_css.Rmd’ using rmarkdown
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  The vignette engine knitr::rmarkdown is not available, because the rmarkdown package is not installed. Please install it.
Learn more about sjPlot with 'browseVignettes("sjPlot")'.
--- finished re-building ‘table_css.Rmd’

SUMMARY: processing the following files failed:
  ‘plot_model_estimates.Rmd’ ‘tab_bayes.Rmd’

Error: Vignette re-building failed.
Execution halted