Perhaps add this line at the start of your sketch:
import processing.data.XMLElement;
You rightfully posted in the Core Library section, and these libraries need an explicit import.
Note that the XMLElement usage as greatly changed since 1.5.1. You need to adapt whatever code parsing XML to the new way.
import processing.data.XMLElement;
You rightfully posted in the Core Library section, and these libraries need an explicit import.
Note that the XMLElement usage as greatly changed since 1.5.1. You need to adapt whatever code parsing XML to the new way.