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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: geom_half_boxplot
> ### Title: A half boxplot
> ### Aliases: geom_half_boxplot
> 
> ### ** Examples
> 
> ggplot(iris, aes(x = Species, y = Petal.Width, fill = Species)) + 
+   geom_half_boxplot() 
Error in `geom_half_boxplot()`:
! Problem while converting geom to grob.
i Error occurred in the 1st layer.
Caused by error in `data.frame()`:
! arguments imply differing number of rows: 1, 0
Backtrace:
     x
  1. +-base (local) `<fn>`(x)
  2. +-ggplot2:::print.ggplot(x)
  3. | +-ggplot2::ggplot_gtable(data)
  4. | \-ggplot2:::ggplot_gtable.ggplot_built(data)
  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$draw_geom(d, layout)
 14. |         \-ggplot2 (local) draw_geom(..., self = self)
 15. |           \-self$geom$draw_layer(...)
 16. |             \-ggplot2 (local) draw_layer(..., self = self)
 17. |               \-base::lapply(...)
 18. |                 \-ggplot2 (local) FUN(X[[i]], ...)
 19. |                   +-rlang::inject(self$draw_panel(data, panel_params, coord, !!!params))
 20. |                   \-self$draw_panel(...)
 21. |                     \-ggplot2 (local) draw_panel(..., self = self)
 22. |                       \-base::lapply(...)
 23. |                         \-ggplot2 (local) FUN(X[[i]], ...)
 24. |                           \-self$draw_group(group, panel_params, coord, ...)
 25. |                             \-gghalves (local) draw_group(...)
 26. |                               \-base::data.frame(...)
 27. |                                 \-base::stop(...)
 28. \-base::.handleSimpleError(...)
 29.   \-rlang (local) h(simpleError(msg, call))
 30.     \-handlers[[1L]](cnd)
 31.       \-cli::cli_abort(...)
 32.         \-rlang::abort(...)
Execution halted