'externalptr' error in R using XML data

Question

I am working with some XML data in R and running into errors regarding type \'externalptr\'.

1) I get the following error when I try to use the xmlInternalTreeParse()

Answer 1

I managed to write the content of an XML tree to a file using the saveXML() command from the XML package:

saveXML(xml[[1]], file="output.xml")

Hope this helps.