Trouble Installing rlang and TidyVerse

5.1 and RStudio 1.2.5. I am trying to load Tidyverse and it gave some error message about "onload failed in loadNameSpace() for 'rlang' so I think maybe I need to load rlang first, but I got the same error message.

I have been going around the circle for days now, tried everything suggested online, except to uninstall the R studio as we need to go through IT for it (R is in local software center which we are able to download ourselves so I did uninstall R and install it myself but still not working).

Following advice found online,

---I deleted rlang then checked on R:

>library("rlang")
Error in library("rlang") : there is no package called ‘rlang’

---Then I make sure the CRANExtra is removed

setRepositories()

---Then I specify the library location to install

install.packages("rlang",lib="C:/Users/LIN0001/DataNow/Home/R/win-library/3.5") trying URL 'https://mran.microsoft.com/snapshot/2018-08-01/bin/windows/contrib/3.5/rlang_0.2.1.zip' Content type 'application/zip' length 821580 bytes (802 KB) downloaded 802 KB

package ‘rlang’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
    C:\Users\LIN0001\AppData\Local\Temp\RtmpigNMZO\downloaded_packages

---Then I try to load it from the same folder:

library("rlang",lib.loc="C:/Users/LIN0001/DataNow/Home/R/win-library/3.5") Error: package or namespace load failed for ‘rlang’: .onLoad failed in loadNamespace() for 'rlang', details: call: dots_list(...) error: object 'rlang_dots_list' not found

I also untick the "use secure download method for http" of packages option in RStudio and when install Tidyverse, select No instead of Yes on the pop up window (can't remember the exact message, something to do with security again); I have tried to load both on R and Rstudio but got the same error messages.

Now I run out of options to try and please help.

Many thanks in advance.