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
I think this was already mentioned above, but I ran into the same issue. Pay special attention to a few things. First, which packages are missing? For example, when I was installing dplyr, I was missing the dependency Rbcc. So I had to go back and install that package separately. Let the package install into whichever default temporary folder it needs to. In my case, it was C:\Users\Andre\AppData\Local\Temp\Rtmpisa3bO\downloaded_packages\Rcpp. AppData was not visible, so I had to manually type that in. Go and track it down, manually unzip that folder from the .zip to a regular folder. This new folder will be your new package name. Copy that newly unzipped folder to the R library you are working out of. You should now be able to start using it. Hope this helps.