[R] trouble loading ggplot2 using R

[linsleyp]

I'm having trouble loading ggplot2 on my mac (Snow Leopard) using R version
2.12.1, as shown below.  I can't find a posting relevant to this problem, so
any help would be very much appreciated.  Thanks,

peter l



> install.packages('ggplot2', dep = TRUE)
trying URL
'http://cran.cnr.Berkeley.edu/bin/macosx/leopard/contrib/2.12/ggplot2_0.8.9.tgz'
Content type 'application/x-gzip' length 2481399 bytes (2.4 Mb)
opened URL
==================================================
downloaded 2.4 Mb


The downloaded packages are in

/var/folders/XF/XF0tU7gdGTeF4Th7KhKYDk+++TI/-Tmp-//RtmpFMnqLB/downloaded_packages
> library(ggplot2)
Error in assign(names[i], dots[[i]], env = envir) : 
  invalid first argument
Error : unable to load R code in package 'ggplot2'
Error: package/namespace load failed for 'ggplot2'

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