I run a 14.04 system and pick up libreoffice from the official ppa (http://ppa.launchpad.net/libreoffice/ppa/ubuntu trusty main).
This morning the ppa provided a bunch of updates. While incorporating them, I got multiple warnings of the form
W: Ignoring Provides line with DepCompareOp for package libreoffice-l10n
and the advice to
W: You may want to run apt-get update to correct these problems
(which did not help when run)
Oddly, I do not seem to have the package libreoffice-l10n installed.
These warnings do not seem to have much effect, in that the updates succeeded.
Now, however, they show up on every subsequent sudo apt update or similar command.
How can I rid my system of these warnings?

sudo apt-get update && sudo apt-get upgradedoesn't help ? – GAD3R Feb 03 '17 at 17:14sudo apt-get updatestep, andupgradereports no packages to install or upgrade. – Organic Marble Feb 03 '17 at 17:55sudo apt-get updateI do not get the warnings. Of course this moves all the libreoffice packages to local. – Organic Marble Feb 03 '17 at 22:25