Error: install_github command failed

[Ronan5557]

I followed the installation instructions and get the following error after running the command

install_github(repo="WRScppWin", username="mrxiaohe")

The error is as follows:

Warning: running command 'cp -R . "C:/Users/Blair/Documents/R/win-library/3.3/WRScpp" || ( internal cd - .| (cd "C:/Users/Blair/Documents/R/win-library/3.3/WRScpp" && internal -xf -))' had status 127
ERROR: installing binary package failed
* removing 'C:/Users/Blair/Documents/R/win-library/3.3/WRScpp'
Error: Command failed (1)
In addition: Warning message:
Username parameter is deprecated. Please use mrxiaohe/WRScppWin 

Thanks in advance for your help.