R help - Mar 2011 - trouble loading ggplot2 using R

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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Hello, 

I have a similar error, running R in Snow Leopard too
> library("ggplot2")
Error : .onAttach failed in attachNamespace() for 'ggplot2', details:
  call: stats::runif(1)
  error: .Random.seed no es un vector de n?meros enteros pero es de tipo
'list'
Error: package/namespace load failed for ?ggplot2?

does anybody have this package running in Snow Leopard?
thks in advance.

Ram?n Ovelar


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