[R] package update

[eric]

I'm running Linux Ubuntu and tried to update my packages using the
update.package() command. It appeared to download the updates ok but I got
the following message:


The downloaded packages are in ‘/tmp/RtmpFM82Ry/downloaded_packages’
Warning in install.packages(update[instlib == l, "Package"], l, contriburl =
contriburl,  :
  'lib = "/usr/lib/R/site-library"' is not writable
Error in install.packages(update[instlib == l, "Package"], l, contriburl =
contriburl,  : 
  unable to install packages
Calls: update.packages -> install.packages

What does this mean ? And more importantly, how do I address it ?
-- 
View this message in context: http://r.789695.n4.nabble.com/package-update-tp3164690p3164690.html
Sent from the R help mailing list archive at Nabble.com.