I am trying to (finally) update to v5. I understand this will require first an upgrade to the latest v4, which I saw was recommended on a fresh install, then restore database.
I have created a fresh Ubuntu 20.04 VM, PHP 7.4, nginx
Installed ZIP for v4.5.50
When I access the site, I get error:
“Composer detected issues in your platform: Your Composer dependencies require the following PHP extensions to be installed: gmp, zip”
How do I proceed?