Hi thanks for your suggestions.

I performed the command as root instead of a regular user, how you said
me.. When I performed:


 > biocLite(“XML”), it resulted:


 Warning message:

In install.packages(pkgs = pkgs, lib = lib, repos = repos, ...) :

installation of package ‘XML’ had non-zero exit status


 Moreover, when I performed:


 >biocLite(“biomaRt”), it resulted:


 Warning messages:

1: In install.packages(pkgs = pkgs, lib = lib, repos = repos, ...) :

installation of package ‘XML’ had non-zero exit status

2: In install.packages(pkgs = pkgs, lib = lib, repos = repos, ...) :

installation of package ‘biomaRt’ had non-zero exit status


 So I performed:

>install.packages("biomaRt",

+repos="http://bioconductor.org/packages/2.12/bioc") and:


 >install.packages("biomaRt",

+repos="http://bioconductor.org/packages/2.12/biomaRt"), to install
packages biomaRt, but it resulted:


 Warning message:

In install.packages("biomaRt", repos = "
http://bioconductor.org/packages/2.12/bioc") :

installation of package ‘biomaRt’ had non-zero exit status


 Why? How can I solve my problems??


 Thanks a lot

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