Thanks!
But now I have problems updating the package... The error that appeared is the next one:
Error in install.packages(update[instlib == l, "Package"], l, contriburl = contriburl, :
type == "both" cannot be used if 'available' or 'contriburl' is specified
When I install other package I never had this type of problems, I don't know if it is because I have to update the package as an admin or what..
Are you familiar with this problem?
Thanks in advance!