在Windows的R-devel 3.4.0上安装devtools, dplyr,ggplot2。

I will submitting my package to CRAN. I have already built with R 3.2.4 and I now am trying to build on R-devel 3.4.0 before submitting to CRAN as required. I am having problems installing packages. I have installed Rtools33.exe for Windows. But I get an errors when installing the following packages - devtools, dplyr, ggplot2 etc. Here are the errors for devtoolsI will submitting my package to CRAN. I have al