Loading required package: raster
Loading required package: sp
Loading required package: XML
Loading required package: maptools
Checking rgeos availability: TRUE
Please note that 'maptools' will be retired by the end of 2023,
plan transition at your earliest convenience;
some functionality will be moved to 'sp'.
Loading required package: png

Attaching package: ‘lubridate’

The following objects are masked from ‘package:raster’:

    intersect, union

The following objects are masked from ‘package:base’:

    date, intersect, setdiff, union

There were 50 or more warnings (use warnings() to see the first 50)
Error in .local(.Object, ...) : 
  `/home/vulcano/NA' does not exist in the file system,
and is not recognised as a supported dataset name.


Error in .rasterObjectFromFile(x, band = band, objecttype = "RasterLayer",  : 
  Cannot create a RasterLayer object from this file. (file does not exist)
Calls: raster -> raster -> .local -> .rasterObjectFromFile
Execution halted