remove mount kwordquiz libopencdk8 autoconf libxrender1 NOTE: This is only a simulation! apt-get needs root privileges for real execution. Keep also in mind that locking is deactivated, so don't depend on the relevance to the real current situation! Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: at : Depends: mail-transport-agent exim4 : Depends: exim4-daemon-light but it is not going to be installed or exim4-daemon-heavy but it is not going to be installed or exim4-daemon-custom but it is not installable libldap2 : Depends: libgnutls13 (>= 1.4.0-0) but it is not going to be installed E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.