Trouble installing rattle - getting error packages not available for r 4.0.2.

I am having the same problem installing rattle.

I get packages not available for r 4.0.2.

rattle is indeed available on CRAN for R 4.0.2 so very likely this is 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 ( 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.

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