I am trying to install package MCMCPack.   I am using Lion.

R confirms:
trying URL '
http://rweb.quant.ku.edu/cran/bin/macosx/leopard/contrib/2.13/MCMCpack_1.2-1.tgz
'
Content type 'application/x-gzip' length 8055525 bytes (7.7 Mb)
opened URL
==================================================
downloaded 7.7 Mb


The downloaded packages are in
/var/folders/qf/q83rlh3x2qjcp75c3phtj81c0000gn/T//Rtmp4qzUW6/downloaded_packages


seems like its downloaded, great!

> require(MCMCpack)
Loading required package: MCMCpack
Error in dyn.load(file, DLLpath = DLLpath, ...) :
  unable to load shared object
'/Library/Frameworks/R.framework/Versions/2.13/Resources/library/MCMCpack/libs/x86_64/MCMCpack.so':

dlopen(/Library/Frameworks/R.framework/Versions/2.13/Resources/library/MCMCpack/libs/x86_64/MCMCpack.so,
6): Library not loaded:
@rpath/R.framework/Versions/2.13/Resources/lib/libR.dylib
  Referenced from:
/Library/Frameworks/R.framework/Versions/2.13/Resources/library/MCMCpack/libs/x86_64/MCMCpack.so
  Reason: image not found

I have installed packages before, what is up with this one?

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