Opening Package Updater saying a message All packages are up to date
.
Behind that a error message saying
Could not get list of distribution upgrades
Failed to process request
in more details I get:
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: Failed to execute child process “/usr/share/PackageKit/helpers/aptcc/get-distro-upgrade.py” (No such file or directory)
Tried the following commands but all are doing fine accept openning the package updater.
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get --fix-broken install
A bug has been already reported in the official site
It has been officially confirmed, so you can follow the link and wait there for there solutions.