'Object not found' error when loading party package in R

Question

I'm trying to load the party package in R. I have all the relevant dependencies installed, but when I type library(party), I get the error:

Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : object 'vI' not found
Error: package or namespace load failed for ‘party’

I've never seen an error like this when loading a package before, and I'm really at a loss. Any help would be greatly appreciated.

Answer 1

Sys.getenv("vI_HOME")

if(Sys.getenv("vI_HOME")!="")    Sys.setenv(vI_HOME="")

library("party")