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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: geom_sf_interactive
> ### Title: Create interactive sf objects
> ### Aliases: geom_sf_interactive geom_sf_label_interactive
> ###   geom_sf_text_interactive
> 
> ### ** Examples
> 
> # add interactive sf objects to a ggplot -------
> library(ggplot2)
> library(ggiraph)
> 
> ## original code: see section examples of ggplot2::geom_sf help file
> if (requireNamespace("sf",
+                      quietly = TRUE,
+                      versionCheck = c(op = ">=", version = "0.7-3"))) {
+   nc <- sf::st_read(system.file("shape/nc.shp", package = "sf"), quiet = TRUE)
+   gg <- ggplot(nc) +
+     geom_sf_interactive(aes(fill = AREA, tooltip = NAME, data_id = NAME))
+   x <- girafe(ggobj = gg)
+   if( interactive() ) print(x)
+ 
+   nc_3857 <- sf::st_transform(nc, "+init=epsg:3857")
+ 
+   # Unfortunately if you plot other types of feature you'll need to use
+   # show.legend to tell ggplot2 what type of legend to use
+   nc_3857$mid <- sf::st_centroid(nc_3857$geometry)
+   gg <- ggplot(nc_3857) +
+     geom_sf(colour = "white") +
+     geom_sf_interactive(aes(geometry = mid,
+         size = AREA, tooltip = NAME, data_id = NAME),
+       show.legend = "point")
+   x <- girafe( ggobj = gg)
+   if( interactive() ) print(x)
+ 
+   # Example with texts.
+   gg <- ggplot(nc_3857[1:3, ]) +
+     geom_sf(aes(fill = AREA)) +
+     geom_sf_text_interactive(aes(label = NAME, tooltip = NAME), color="white")
+   x <- girafe( ggobj = gg)
+   if( interactive() ) print(x)
+ 
+   # Example with labels.
+   gg <- ggplot(nc_3857[1:3, ]) +
+     geom_sf(aes(fill = AREA)) +
+     geom_sf_label_interactive(aes(label = NAME, tooltip = NAME))
+   x <- girafe( ggobj = gg)
+   if( interactive() ) print(x)
+ }
Warning in CPL_crs_from_proj4string(x) :
  GDAL Message 1: +init=epsg:XXXX syntax is deprecated. It might return a CRS with a non-EPSG compliant axis order.
Warning in CPL_transform(x, crs$proj4string) :
  GDAL Error 1: PROJ: proj_create_operations: At least one of the operation lacks a source and/or target CRS
Warning in CPL_transform(x, crs$proj4string) :
  GDAL Error 6: Cannot find coordinate operations from `GEOGCRS["unknown",DATUM["North American Datum 1927",ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]],ID["EPSG",6267]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8901]],CS[ellipsoidal,2],AXIS["longitude",east,ORDER[1],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]],AXIS["latitude",north,ORDER[2],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9122]]]]' to `PROJCRS["WGS 84 / Pseudo-Mercator",BASEGEOGCRS["WGS 84",DATUM["World Geodetic System 1984",ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4326]],CONVERSION["unnamed",METHOD["Popular Visualisation Pseudo Mercator",ID["EPSG",1024]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Fal [... truncated]
Error in CPL_transform(x, crs$proj4string) : 
  OGRCreateCoordinateTransformation() returned NULL: PROJ available?
Calls: <Anonymous> ... st_transform -> st_transform.sfc -> structure -> CPL_transform
Execution halted