Unable to install package zoo

问题

I am trying to install zoo package using:

install.packages("zoo")

I am getting the following error:

package ‘zoo’ successfully unpacked and MD5 sums checked

Warning in install.packages : cannot remove prior installation of package ‘zoo’

The downloaded binary packages are in C:\Users\user\AppData\Local\Temp\Rtmpaa1iAI\downloaded_packages

Any assistance out there. Newbie in R

来源：https://stackoverflow.com/questions/46012471/unable-to-install-package-zoo