I have downloaded MacTeX-2020 to be able to knit R Markdown documents to PDF in R Studio. I downloaded it yesterday and it is the 2020 version. When I try to knit to PDF in R Markdown, I get the error:
tlmgr: Local TeX Live (2019) is older than remote repository (2020). Cross release updates are only supported with update-tlmgr-latest(.sh/.exe) --update See https://tug.org/texlive/upgrade.html for details. ! LaTeX Error: File `multirow.sty' not found. ! Emergency stop. <read *> Error: LaTeX failed to compile lab_test.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See lab_test.log for more info. In addition: Warning message: In system2("tlmgr", args, ...) : running command ''tlmgr' search --file --global '/multirow.sty'' had status 1 Execution halted
I am not sure how this has happened because I downloaded the 2020 MacTeX version so surely Local TeX Live should also be the 2020 version and not 2019 version? How can I upgrade the Local TeX Live to the 2020 version? Many thanks for your help.