Every effort to install and reinstall the above mentioned packages has rendered no fruit. I keep wondering why the packages load in the console but fail in the terminal command
My R version is 3.6.0 and for dependency issues that is the only one I can use for now.
Thanks , I tried this but it didn't work.
What worked is I wrote a dplyr.r script for installing the 1.0.9 version of dplyr and installed it with Rscript dplyr.r and that solved the problem.
The essence remained that if I installed or updated in the r console itself , somehow it never reflected the changes that are picked with the Rscript, however the vice-versa is not true, changes made using the Rscript command are reflected in the r console.
Rscript must be running as sudo ergo installing into the system-level package library and the R console running as a regular user which by default installs into a user-level package library.