can u try running the same command after cleaning ur cache and already downloaded repository updates? Let us know what comes up after that. Use the below comments, not necessarily in the same order. Code: apt-get clean apt-get autoclean apt-get remove apt-get autoremove remove and autoremove would remove any applications that have broken dependencies and are not used by any other app. they should also be able to help you identify if any app has a problem.
apt-get clean apt-get autoclean apt-get remove apt-get autoremove