[R] libraries of Rgraphviz and rhdf5

[N L]

I just installed bioconductor via getBioC.R but there
is 3 problems: apparently some libraries are missing
and I don't know which one, and even the XML package
add a error message like : 
1:Installation of package Rgraphviz had non-zero exit
status in: installPkg(fileName, pkg, pkgVer, type,
lib, repEntry, versForce)
2:Installation of package rhdf5 had non-zero exit
status in: installPkg(fileName, pkg, pkgVer, type,
lib, repEntry, versForce)
3:Installation of package XML had non-zero exit status
in: installPkg(fileName, pkg, pkgVer, type, lib,
repEntry, versForce)
What can I do?

Thanks in advance!

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