You should upgrade all packages together, not individually.
You appear to be trying to install packages from artful-proposed, which is not recommended for daily use, unless you are testing SRU fixes.
If you do not intend to validate pre-release test packages, please disable artful-proposed on your system.
You should upgrade all packages together, not individually.
You appear to be trying to install packages from artful-proposed, which is not recommended for daily use, unless you are testing SRU fixes.
If you do not intend to validate pre-release test packages, please disable artful-proposed on your system.