Comment 15 for bug 1011482

@ippsatsi, the package version number suggests that you used this PPA:
https://launchpad.net/~oiteam/+archive/ubuntu/epoptes

AFAIK this is Laércio's PPA, it's not the "official" one where the epoptes developers publish our proposed versions:
https://code.launchpad.net/~epoptes/+archive/ubuntu/proposed

Remove it from your sources (sudo rm /etc/apt/sources.list.d/epoptes*), and try this instead:
sudo add-apt-repository ppa:epoptes/proposed
sudo apt-get update
sudo apt-get dist-upgrade

In the end, verify that you have this version installed:
0.5.8-1+r462~ubuntu14.04.1