I'm also concerned by this bug (today) but I'm not using any ppa. I don't use synaptic neither. But it happened after running "apt-get update" and "apt-get upgrade". So it seems to be related to update process.
I'm also concerned by this bug (today) but I'm not using any ppa. I don't use synaptic neither. But it happened after running "apt-get update" and "apt-get upgrade". So it seems to be related to update process.