Comment 16 for bug 1709699

After 18.04 - 18.10 update same;
sudo nano /etc/update-manager/release-upgrades

Gnome
package update:

prompt=normal
same problem:

Spawn of helper '/usr/share/PackageKit/helpers/aptcc/get-distro-upgrade.py' failed: failed to spawn /usr/share/PackageKit/helpers/aptcc/get-distro-upgrade.py

test:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get --fix-broken install
sudo apt-get check

sudo apt-get --fix-broken install
...
 main.go:152: description of advise-snap's "from-apt" is lowercase: "advise-snap want to apt via an apt-hook"