[BioC] Warning: unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/bin/macosx/leopard/contrib/2.15?

[Sang Chul Choi]

Hi,

I am installing BioC (ver.2.10) and R (ver.2.15) and found the following warning:

==========
source("http://bioconductor.org/biocLite.R")
biocLite("easyRNASeq")
==========
Warning: unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/bin/macosx/leopard/contrib/2.15

Do I have to pay attention to the warning?

Thank you,

SangChul