Dear all I am trying to install the "gRain" package on ubuntu 8.10, running R Vers. 2.9. Unfortunately, I get a bad Exit-Status. What could cause that problem? Any help is appreciated. Many thanks in advance. A. Biedermann install.packages("gRain") Warnung in install.packages("gRain") : Argument 'lib' fehlt: nutze '/home/user1/R/i486-pc-linux-gnu-library/2.9' versuche URL 'http://cran.ch.r-project.org/src/contrib/gRain_0.8.0.tar.gz' Content type 'application/x-gzip' length 133482 bytes (130 Kb) URL ge?ffnet =================================================downloaded 130 Kb * Installing *source* package ?gRain? ... ** R ** demo ** inst ** preparing package for lazy loading Error in library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc = lib.loc) : 'gRbase' is not a valid installed package Fehler: lazy loading failed f?r Paket ?gRain? * Removing ?/home/user1/R/i486-pc-linux-gnu-library/2.9/gRain? Die heruntergeladenen Pakete sind in ?/tmp/RtmpgVRO21/downloaded_packages? Warning message: In install.packages("gRain") : Installation des Pakets 'gRain' hatte Exit-Status ungleich 0