When the CHOWN – 501:20 for anaconda does not work

When updating packages on Anaconda-Navigator (AN) and you encounter unable to write packages to /Users/mb/opt/anaconda3/pkgs/cache/53d7ef51.json.

The solution provided by AN is to run sudo chown 501:20 /Users/mb/opt/anaconda3/pkgs/cache/53d7ef51.json in your terminal. Sometimes this also does not fix the problem.

I would suggest
Cd into /users/mb/opt/
Run, sudo chown -R 501:20 anaconda3/

or

sudo chown -R 501:20 /Users/mb/opt/anaconda3/

This should solve any future issues with read/write packages with AN.

Hope this works.