Hi, I encountered a very strange error with R (2.14.1). I tried to build an R package and eventually worked (passing all the checks etc.). Then, I tried this command "R CMD INSTALL --binary pkg", which supposedly "installs and produce a binary source archive (*.zip) for use on Windows only." Nothing happened, but I could not run "R CMD check pkg" anymore. Further, when I tried to invoke R, I had \ Warning message: In normalizePath(c(new, .Library.site, .Library), "/") : path[1]="": No such file or directory I looked through all the document but could not find an answer. Could you please provide some hint? Thanks! Jianying Li Bionformatics Scientist, Contractor National Institute of Environmental Health Sciences Li11@niehs.nih.gov<mailto:Li11@niehs.nih.gov> (919) 541 - 5736 [[alternative HTML version deleted]]