我已经成功安装了RWeka，如下所示，但在加载库时出现错误there is no package called ‘RWeka’
package ‘RWekajars’ successfully unpacked and MD5 sums checked
package ‘RWeka’ successfully unpacked and MD5 sums checked
Warning in install.packages :
unable to move temporary installation ‘C:\Program Files\R\R-3.3.3\library\file1b2069d9552\RWeka’ to ‘C:\Program Files\R\R-3.3.3\library\RWeka’
The downloaded binary packages are in
C:\Users\agarciar\AppData\Local\Temp\RtmpY7D2K9\downloaded_packages
> library(RWeka)
Error in library(RWeka) : there is no package called ‘RWeka’
> Sys.getenv("R_ARCH")
[1] "/x64"
> system("java -version")
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)
Java版和RStudio都是64位，如图所示，我不知道还有什么要检查