Unable to install most packages(Error: invalid version specification ‘NA’)

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1

Hello,

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?

2

Try entering in the Console the following command

install.packages("knitr")

Package installations issues depend on the underlying R, not the RStudio interface

3

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