Unable to install packages on Mac

General
1

Hi,

I have have a Mac and have downloaded Rstudio a number of times now but I cannot install any packages.
I am always getting a warming:
Warning: unable to access index for repository http://cram.rstudio.com/arc/contrib:
cannot open URL ‘http://cram.rstudio.com/arc/contrib/PACKAGES’

Thanks’

2

I'm not a mac user, but this looks like a typo, cram rather than cran.
also this is a clickable link, I clicked it now, and it goes nowhere...
I think you can set a repo like

option(repos="cran.rstudio.com")

and try again ?

3

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