Strange Error Trying to Install Certain Packages in R - r

Question

I'm trying to install the dplyr package in R.
When I do it I get the following error:
> install.packages("dplyr")
Warning in install.packages :
InternetOpenUrl failed: ''
Warning in install.packages :
InternetOpenUrl failed: ''
Warning in install.packages :
unable to access index for repository https://mirrors.tuna.tsinghua.edu.cn/CRAN/src/contrib
Installing package into ‘C:/Users/Matt/Documents/R/win-library/3.2’
(as ‘lib’ is unspecified)
Warning in install.packages :
InternetOpenUrl failed: ''
Warning in install.packages :
InternetOpenUrl failed: ''
Warning in install.packages :
unable to access index for repository https://mirrors.tuna.tsinghua.edu.cn/CRAN/src/contrib
Warning in install.packages :
package ‘dplyr’ is not available (for R version 3.2.2)
Warning in install.packages :
InternetOpenUrl failed: ''
Warning in install.packages
InternetOpenUrl failed: ''
Warning in install.packages :
unable to access index for repository https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/3.2
I am able to install some packages and not others where I get this error. I have changed the mirror. Also I have uninstalled R and R studio and reinstalled. No luck.
Can anyone help?
Thank you.

Answer 1

I have an answer - but it isn't what I'd consider "good". I just kept trying to load the package and finally it worked. I know that my connection was good which suggests to me it was a problem at the CRAN mirror. However, that doesn't make complete sense because I manually changed mirrors and had the same problem. So unless the mirrors are somehow really tied together in real time I'm not sure how that could be the problem. So - my "not good" advice is to just keep trying to load the package over an extended period of time and it (hopefully) should work.