Thanks Sean, I did tmpLib <- tempfile() dir.create(tmpLib) install.packages2("GOstats",lib=tmpLib) and now it's ok. It's strange because when I installed R 2.0.1, I reinstall bioconductor. Maria Persico MINT database, Cesareni Group Universita' di Tor Vergata, via della Ricerca Scientifica 00133 Roma, Italy Tel: +39 0672594315 FAX: +39 0672594766 e-mail: maria@cbm.bio.uniroma2.it On Fri, 14 Jan 2005, Sean Davis wrote: > > On Jan 14, 2005, at 5:01 AM, Maria Persico wrote: > > > > > Hello, > > I have installed Version 2.0.1, and when I try to load GOstats library > > I obtain this error message: > >> library(GOstats) > > Error in library(GOstats) : 'GOstats' is not a valid package -- > > installed > > < 2.0.0? > > Maria, > > Are you using a library from a previous version of R? When you > installed R 2.0.1, did you reinstall bioconductor? > > You can try reinstalling GOstats by using the getBioC script (from the > bioconductor site) or using install.packages2. If you use > install.packages2, you will need to load reposTools first. > > Sean > >