Installing package ez on mac error

Question

Just installed R and RStudio on macbook pro running Yosemite. When I try to install the ez package, I get a number of error messages, whether I use the R package manager or the install.packages command.

Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) :
there is no package called 'quantreg'
Error: package or namespace load failed for 'ez'

I have no idea what to do.

Answer 1

Solved by using the package installer and installing quantreg from there. Apparently install.packages had trouble doing that.