Running examples in 'JointAI-Ex.R' failed
The error most likely occurred in:

> ### Name: densplot
> ### Title: Plot posterior density from JointAI model
> ### Aliases: densplot densplot.JointAI
> 
> ### ** Examples
> 
> 
> # fit a JointAI object:
> mod <- lm_imp(y ~ C1 + C2 + M2, data = wideDF, n.iter = 100)
This is new software. Please report any bug to the package maintainer.
> 
> # Example 1: basic densityplot
> densplot(mod)
> 
> 
> # Example 2: use vlines to mark zero
> densplot(mod, col = c("darkred", "darkblue", "darkgreen"),
+          vlines = list(list(v = rep(0, nrow(summary(mod)$stats)),
+                             col = grey(0.8))))
> 
> 
> # Example 3: use vlines to visualize the posterior mean and 2.5% and 97.5% quantiles
> densplot(mod, vlines = list(list(v = summary(mod)$stats[, "Mean"], lty = 1, lwd = 2),
+                             list(v = summary(mod)$stats[, "2.5%"], lty = 2),
+                             list(v = summary(mod)$stats[, "97.5%"], lty = 2)))
> 
> 
> # Example 4: ggplot version
> densplot(mod, use_ggplot = TRUE)
Error in namespaceExport(ns, exports) : 
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_inf
Calls: densplot ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted