It looks like there might be some kind of problem with the Plyr-1.4.1 packages pushed to CRAN? The web pages show 1.4.1 as the current version, but trying to fetch the source through the provided link gives a 404:
http://lib.stat.cmu.edu/R/CRAN/web/packages/plyr/index.html $ wget http://lib.stat.cmu.edu/R/CRAN/src/contrib/plyr_1.4.1.tar.gz --2011-04-11 13:19:09-- http://lib.stat.cmu.edu/R/CRAN/src/contrib/plyr_1.4.1.tar.gz Resolving lib.stat.cmu.edu... 128.2.241.212 Connecting to lib.stat.cmu.edu|128.2.241.212|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2011-04-11 13:19:09 ERROR 404: Not Found. This prevented me from installing ggplot2 until I went back and found an old version (1.4) of Plyr to install manually. Since it looks like Plyr was *just* updated a few days ago, I'm guessing something went awry? I checked several CRAN mirrors and got the same problem with all of them. They think the current version is 1.4.1, but they don't have any files available for download. Hope this helps, Ian [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.