Running examples in ‘Rbearcat-Ex.R’ failed
The error most likely occurred in:

> ### Name: bcat_plt_bar
> ### Title: Bar plot utility
> ### Aliases: bcat_plt_bar
> 
> ### ** Examples
> 
> library(ggplot2)
> library(dplyr)

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

> library(scales)
> 
> # basic plot of frequencies
> bcat_plt_bar(df = mpg,
+              x = toupper(class),
+              order = TRUE,
+              x_lab = NULL,
+              y_lab = NULL,
+              title = "Number of Vehicles by Class and Drive Type",
+              legend_lab = "Drive Type")
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)) :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Warning in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  :
  font family 'Arial' not found in PostScript font database
Error in grid.Call.graphics(C_text, as.graphicsAnnot(x$label), x$x, x$y,  : 
  invalid font type
Calls: <Anonymous> ... drawDetails -> drawDetails.text -> grid.Call.graphics
Execution halted