Warning in install.packages : unable to access index for repository http://www.icesi.edu.co/CRAN/src/contrib:

[adrian2651]

Hi, I'm new to rstudio, I've tried to install some packages but I couldn't, I get this message every time I go to install one. Could you please help me to solve it thank you

install.packages("installr", dependencies = TRUE)
Warning in install.packages :
unable to access index for repository http://www.icesi.edu.co/CRAN/src/contrib:
cannot open URL ....
Warning in install.packages :
unable to access index for repository .....
cannot open URL
Warning in install.packages :
package ‘installr’ is not available for this version of R

A version of this package for your version of R might be available elsewhere,
see the ideas at

status was 'SSL connect error'

[williaml]

Hi, are you running on an OS that is not Windows? That might be the issue with installr.

Although the SSL connect error suggests that it is probably something else.

[andresrcs]

@adrian2651

unable to access index for repository http://www.icesi.edu.co/CRAN/src/contrib:
cannot open URL ....

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. This might help when some download methods are not available in your system
  
  
• 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.