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

> ### Name: stat_conf_ellipse
> ### Title: Plot confidence ellipses.
> ### Aliases: stat_conf_ellipse
> 
> ### ** Examples
> 
> # Load data
> data("mtcars")
> df <- mtcars
> df$cyl <- as.factor(df$cyl)
> 
> # scatter plot with confidence ellipses
> ggscatter(df, x = "wt", y = "mpg", color = "cyl")+
+  stat_conf_ellipse(aes(color = cyl))
New names:
* `x` -> `x...1`
* `y` -> `y...2`
* `x` -> `x...4`
* `y` -> `y...5`
New names:
* `x` -> `x...1`
* `y` -> `y...2`
* `x` -> `x...4`
* `y` -> `y...5`
New names:
* `x` -> `x...1`
* `y` -> `y...2`
* `x` -> `x...4`
* `y` -> `y...5`
Warning: The following aesthetics were dropped during statistical transformation: x, y
i This can happen when ggplot fails to infer the correct grouping structure in
  the data.
i Did you forget to specify a `group` aesthetic or to convert a numerical
  variable into a factor?
Error in `stat_conf_ellipse()`:
! Problem while setting up geom.
i Error occurred in the 2nd layer.
Caused by error in `compute_geom_1()`:
! `geom_path()` requires the following missing aesthetics: x and y
Backtrace:
     x
  1. +-base (local) `<fn>`(x)
  2. \-ggplot2:::print.ggplot(x)
  3.   +-ggplot2::ggplot_build(x)
  4.   \-ggplot2:::ggplot_build.ggplot(x)
  5.     \-ggplot2:::by_layer(...)
  6.       +-rlang::try_fetch(...)
  7.       | +-base::tryCatch(...)
  8.       | | \-base (local) tryCatchList(expr, classes, parentenv, handlers)
  9.       | |   \-base (local) tryCatchOne(expr, names, parentenv, handlers[[1L]])
 10.       | |     \-base (local) doTryCatch(return(expr), name, parentenv, handler)
 11.       | \-base::withCallingHandlers(...)
 12.       \-ggplot2 (local) f(l = layers[[i]], d = data[[i]])
 13.         \-l$compute_geom_1(d)
 14.           \-ggplot2 (local) compute_geom_1(..., self = self)
 15.             \-ggplot2:::check_required_aesthetics(...)
 16.               \-cli::cli_abort(message, call = call)
 17.                 \-rlang::abort(...)
Execution halted