R CRAN, install library Rcpp fails after R3.2 upgrade

Question

I upgraded from R-3.1 to R-3.2. OK ( Standard upgrade)

But this upgrade seems to have lost all the installed packages ( ggplot2, quantmod, Rcpp among dozens and doze

Answer 1

I had the same issue: installed "shiny" but running library(shiny) returns error message saying I have no Rcpp package. Installed Rcpp package and got warning

package ‘Rcpp’ successfully unpacked and MD5 sums checked Warning: unable to move temporary installation The downloaded binary packages are in Temp folder C:\Users\Olga\AppData\Local\Temp\RtmpyOXKt4\downloaded_packages

I opened the above folder and copied folder Rcpp from it into the location where it needs to be. Shiny is up and running now.