Error(s) in re-building vignettes:
  ...
--- re-building ‘getting_started.Rmd’ using rmarkdown
Loading required package: rjags
Loading required package: coda
Linked to JAGS 4.3.0
Loaded modules: basemod,bugs

Attaching package: 'R2jags'

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

    traceplot

module glm loaded
Loading required package: MASS
##
## Markov Chain Monte Carlo Package (MCMCpack)
## Copyright (C) 2003-2020 Andrew D. Martin, Kevin M. Quinn, and Jong Hee Park
##
## Support provided by the U.S. National Science Foundation
## (Grants SES-0350646 and SES-0350613)
##
Loading required package: StanHeaders
Loading required package: ggplot2
rstan (Version 2.19.3, GitRev: 2e1f913d3ca3)
For execution on a local, multicore CPU with excess RAM we recommend calling
options(mc.cores = parallel::detectCores()).
To avoid recompilation of unchanged Stan programs, we recommend calling
rstan_options(auto_write = TRUE)

Attaching package: 'rstan'

The following object is masked from 'package:R2jags':

    traceplot

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

    traceplot

Loading required package: Rcpp
rstanarm (Version 2.19.3, packaged: 2020-02-11 05:16:41 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

Attaching package: 'rstanarm'

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

    loo

This table contains an estimate for parameter values outside of the region of 
          practical equivalence (ROPE). For this quantity to be meaningful, all parameters 
          must be on the same scale (e.g. standardized coefficients or first differences).
Picking joint bandwidth of 0.00327
Picking joint bandwidth of 0.00318
Picking joint bandwidth of 0.0037
Picking joint bandwidth of 0.0037
Warning: Removed 1 row(s) containing missing values (geom_path).
Warning in rm(mod.rds) : object ‘mod.rds’ not found
pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'getting_started.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘getting_started.Rmd’

SUMMARY: processing the following file failed:
  ‘getting_started.Rmd’

Error: Vignette re-building failed.
Execution halted