Initially, upgrade failed in UI.
I found 4-month bug report on similar topic, but I'm not sure how it can be resolved: https://askubuntu.com/questions/1377997/the-package-system-is-broken-in-ubuntu-21-04-with-php-ppa
Initially, upgrade failed in UI.
I found 4-month bug report on similar topic, but I'm not sure how it can be resolved: https:/ /askubuntu. com/questions/ 1377997/ the-package- system- is-broken- in-ubuntu- 21-04-with- php-ppa