Problems loading package in R

Question

When I try to load fPortfolio, the following error message occures. Do someone knows how to solve this?

> library("fPortfolio")

Error: package or namespace load failed for ‘fPortfolio’ in loadNamespace(i c(lib.loc, .libPaths()), versionCheck = vI[[i]]): there is no package called ‘XML’

Answer 1

Firstly install XML package:

  install.packages("XML")

After that, try again.