关于 r：无法安装 \\’rstudio/keras\\’

Cannot install 'rstudio/keras'

我正在尝试从 RStudio Github 存储库安装 Keras for R。当我执行命令 devtools::install_github("rstudio/keras") 时，我得到以下输出：

Downloading GitHub repo rstudio/keras@master from URL
https://api.github.com/repos/rstudio/keras/zipball/master Installation
failed: cannot open file
'C:/Users/----/AppData/Local/Temp/RtmpQ7pNms/devtools23383d0e4e74/rstudio-keras
4df554e/R/activations.R': No such file or directory

确实，该文件中不存在目录R/。一个可能的问题是这是一台工作计算机，但我确实拥有这台计算机的管理员权限。

下面是 sessionInfo() 的输出。提前谢谢你！

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R version 3.3.2 (2016-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252 LC_MONETARY=English_United States.1252 LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats graphics grDevices utils datasets methods base

other attached packages:
[1] dplyr_0.5.0 magrittr_1.5 plyr_1.8.4

loaded via a namespace (and not attached):
[1] httr_1.2.1 lazyeval_0.2.0 R6_2.2.0 assertthat_0.1 DBI_0.5-1 tools_3.3.2 withr_1.0.2 curl_2.3 tibble_1.2
[10] memoise_1.1.0 Rcpp_0.12.8 git2r_0.18.0 digest_0.6.10 devtools_1.13.1