error while loading shared libraries: libR.so: cannot open shared object

http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2010-July/000873.html

> To fix this, try placing these two line in a  file  > /etc/ld.so.conf.d/libR.conf  > (without the leading psace, though)  >  >       # make libR.so visible to ld.so  >       /usr/lib/R/lib  >  > On amd64, you could also use  >  >       # make libR.so visible to ld.so  >       /usr/lib64/R/lib  >  > The run 'sudo ldconfig'