Error in install packages : tidyr

[Naoufal]

Hello,
I got this message when installing "tidyr" package.
Please, how can i solve this ?
Thank you

install.packages("tidyr")
Warning in install.packages :
impossible d'accéder à l'index de l'entrepôt https://cran.rstudio.com/src/contrib:
cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'

[andresrcs]

This seems like a connectivity issue, R is not being able to connect to the CRAN repository you have selected, these are some things to try.

• Choose a different CRAN repository, RStudios repository is a good choice (http://cran.rstudio.com/) or you could choose one that is geographically closer to you.
  
  
• Disable secure download setting.
  
  
• Check if your internet connection has traffic restrictions of some kind, like a firewall, proxy server, etc. This is usually the case when you are at work or school.