R和安装命令

Question

install.packages("car")

Installing package into ‘C:/Users/sanzida/Documents/R/win-library/3.3’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.3/car_2.1-4.zip'
Content type 'application/zip' length 1483419 bytes (1.4 MB)
downloaded 1.4 MB

package ‘car’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
    C:\Users\sanzida\AppData\Local\Temp\RtmpCGnD9y\downloaded_packages

library("car")

Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 
  there is no package called ‘Rcpp’
Error: package or namespace load failed for ‘car’**

我已经安装了包，从历史记录中可以看到它。但是再次加载库的错误消息。我现在能做什么？