ERROR:1. can not upgrade2. E: Unmet dependencies3. the system is running in low-graphics mode
The reason is that the library of system don't update and upgrade for a long time. You should do this frequently:
- sudo apt update
- sudo apt upgrade
- sudo apt dist-upgrade
- sudo apt -f install
- sudo apt update
- sudo apt upgrade
- sudo apt dist-upgrade
- sudo apt autoremove
- sudo reboot