我安装了lubridate包。我得到了以下信息：
代码语言：javascript复制> install.packages("lubridate")
Installing package into ‘C:/Users/aw/Documents/R/win-library/3.2’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.2/lubridate_1.5.0.zip'
Content type 'application/zip' length 650842 bytes (635 KB)
downloaded 635 KB
package ‘lubridate’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\aw\AppData\Local\Temp\RtmpuSQUFy\downloaded_packages然后：
代码语言：javascript复制> library(lubridate)
Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) :
there is no package called ‘stringi’
In addition: Warning message:
package ‘lubridate’ was built under R version 3.2.3
Error: package or namespace load failed for ‘lubridate’