Running the example code leads to errors

[mbkumar]

I could not run this line. My machine has Centos-8 Stream.

> MAP = EventMap_tmap(US,100,US$AB,projection="ESPG:5070")
Error in CPL_transform(x, crs, aoi, pipeline, reverse, desired_accuracy,  : 
  crs not found: is it missing?```

[mbkumar]

I'd also like to bring the following warnings to your attention. I don't know if they are important or not.

> EventMap_tmap(US,100,US$AB)
Warning messages:
1: In CPL_transform(x, crs, aoi, pipeline, reverse, desired_accuracy,  :
  GDAL Error 1: PROJ: proj_as_wkt: Unsupported conversion method: Equal Earth
2: In CPL_transform(x, crs, aoi, pipeline, reverse, desired_accuracy,  :
  GDAL Error 1: PROJ: proj_as_wkt: Unsupported conversion method: Equal Earth

[sjbeckett]

Thanks for reporting this @mbkumar. Will check this as we perform revisions.

[sjbeckett]

This may be due to changes in support in underlying geometry formalism (e.g. see r-spatial/sf#1419). We have now updated the examples in #67.