I've been working to resolve this issue for a few days but can't seem to find a solutions.
I'd very much appreciate any advice.
When attempting to install tidyverse, dplyr etc, I get the following error.
Error: invalid version specification ‘NA’
In addition: Warning message:
In utils:::packageDescription(packageName, fields = "Version") :
no package 'knitr' was found
I've uninstalled and reinstalled R studio and changed the the cran miror. I've also tried installing different versions of the package using the url.
Any idea what's going on here?