More and more people are affected by this issue on forum.ubuntu-fr.org. All snap applications must be closed to be upgraded.
The best being Ubuntu Software which tries to upgrade itself.
The solution is to cleanly close the applications to be upgraded.
For Ubuntu software, run "snap-store --quit" then "snap refresh".
Hello,
More and more people are affected by this issue on forum.ubuntu- fr.org. All snap applications must be closed to be upgraded.
The best being Ubuntu Software which tries to upgrade itself.
The solution is to cleanly close the applications to be upgraded.
For Ubuntu software, run "snap-store --quit" then "snap refresh".