无法加载包

Question

我正在尝试安装lubridate软件包，但无法将其加载到我的库

以下是我遇到的错误。

install.packages("lubridate")

Installing package into ‘C:/Users/YingHaw/Documents/R/win-library/3.1’
(as ‘lib’ is unspecified)
trying URL 'http://cran.rstudio.com/bin/windows/contrib/3.1/lubridate_1.3.3.zip'
Content type 'application/zip' length 664643 bytes (649 KB)
opened URL
downloaded 649 KB
package ‘lubridate’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
C:\Users\YingHaw\AppData\Local\Temp\Rtmp4KMRy3\downloaded_packages


library(lubridate)
Error in get(Info[i, 1], envir = env) : 
  cannot open file 'C:/Users/YingHaw/Documents/R/win-library/3.1/Rcpp/R/Rcpp.rdb': No such file or directory
Error: package or namespace load failed for ‘lubridate’

我不明白我遇到这个问题的原因。