[R] reposTools

[Yue]

Dear List,

I tested the example in the reposTools vignette:

library(reposTools);
Loading required package: tools
genRepos("Test 
Repository", "http://biowww.dfci.harvard.edu/~jgentry/","newRepos");
Error in rep.int(colnames(x), nr) : unimplemented type 'NULL' in 'rep'

Could someone help me out with this one?
I'd appreciate all help....

I am running R 2.4.1 windows XP.

YUE