help with error message

[Steve Litt]

On Mon, 4 Jan 2021 13:43:26 +0200
Dr Eberhard W Lisse <nospam at lisse.NA> wrote:

> Heba,
> 
> download BasicTeX from the MacTex site. And then use tlmgr from the
> command line to install missing packages individually. Before an
> update it is trivial to save the list of installed packages so that
> one can re-install them afterwards.

In the past, I've had a lot of problems operating with both upstream
tex, and package installed tex. So I recommend removing the package
installed tex, and installing the upstream. See
https://tug.org/texlive/acquire-netinstall.html for how to install from
upstream. 

SteveT

Steve Litt 
Autumn 2020 featured book: Thriving in Tough Times
http://www.troubleshooters.com/thrive