Hmisc problem

Hi everyone, I'm new to this list. I'm having some trouble when trying to download the package "Hmisc"; here's what I get:

ERROR: dependency ?plyr? is not available for package ?reshape2?
* removing ?/home/davide/R/x86_64-pc-linux-gnu-library/3.0/reshape2?
ERROR: dependency ?plyr? is not available for package ?scales?
* removing ?/home/davide/R/x86_64-pc-linux-gnu-library/3.0/scales?
ERROR: dependencies ?plyr?, ?reshape2?, ?scales? are not available for package ?ggplot2?
* removing ?/home/davide/R/x86_64-pc-linux-gnu-library/3.0/ggplot2?
ERROR: dependencies ?ggplot2?, ?scales? are not available for package ?Hmisc?
* removing ?/home/davide/R/x86_64-pc-linux-gnu-library/3.0/Hmisc?

The downloaded source packages are in
    ?/tmp/RtmpmsbmLu/downloaded_packages?
Warning messages:
1: In install.packages() :
  installation of package ?reshape2? had non-zero exit status
2: In install.packages() :
  installation of package ?scales? had non-zero exit status
3: In install.packages() :
  installation of package ?ggplot2? had non-zero exit status
4: In install.packages() :
  installation of package ?Hmisc? had non-zero exit status

And then the package can't be found when I try to require it.

Can anyone who's had the same problem try to help me?
Thanks in advance.
Davide