It seems like a problem back from dist upgrade. In such cases running apt-get dist-upgrade should normally fix that. However if this problem keeps coming back for you then please report back here attaching your /var/log/apt/history.log and term.log and we'll try to investigate further.
It seems like a problem back from dist upgrade. In such cases running apt-get dist-upgrade should normally fix that. However if this problem keeps coming back for you then please report back here attaching your /var/log/ apt/history. log and term.log and we'll try to investigate further.