trouble loading ggplot2 in R - r

Question

I'm having trouble loading ggplot2 using R version 2.12.1, as shown below. The only help I can find suggests loading "proto". I tried that and it didn't fix my problem. 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'

Answer 1

Hmmm, have you omitted some lines there, before the The downloaded packages are in....? I get:
> install.packages('ggplot2', dep = TRUE)
Installing package(s) into ‘/home/gavin/R/libs’
(as ‘lib’ is unspecified)
trying URL 'http://cran.uk.r-project.org/src/contrib/ggplot2_0.8.9.tar.gz'
Content type 'application/x-gzip' length 2074749 bytes (2.0 Mb)
o pened URL
==================================================
downloaded 2.0 Mb
* installing *source* package ‘ggplot2’ ...
** R
** data
** moving datasets to lazyload DB
** inst
** help
*** installing help indices
** building package indices ...
** testing if installed package can be loaded
* DONE (ggplot2)
The downloaded packages are in
‘/tmp/RtmpfDSoM8/downloaded_packages’
> require(ggplot2)
Loading required package: ggplot2
Loading required package: reshape
Loading required package: plyr
Attaching package: 'reshape'
The following object(s) are masked from 'package:plyr':
round_any
Loading required package: grid
Loading required package: proto
Do you also see the * Done (ggplot2) message for example? If not, the installation likely failed for some reason and we need more details in order to help.
The above was on
> sessionInfo()
R version 2.12.1 Patched (2011-02-06 r54249)
Platform: x86_64-unknown-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_GB.utf8 LC_NUMERIC=C
[3] LC_TIME=en_GB.utf8 LC_COLLATE=en_GB.utf8
[5] LC_MONETARY=C LC_MESSAGES=en_GB.utf8
[7] LC_PAPER=en_GB.utf8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_GB.utf8 LC_IDENTIFICATION=C
attached base packages:
[1] grid stats graphics grDevices utils datasets
[7] methods base
other attached packages:
[1] ggplot2_0.8.9 proto_0.3-8 reshape_0.8.4 plyr_1.4
loaded via a namespace (and not attached):
[1] tools_2.12.1