I am trying to install Oracle’s VirtualBox. I used sudo dpkg -i virtualbox-4.2_4.2.4-81684\~Ubuntu\~quantal_i386.deb Getting following errors (Reading database ... 226237 files and directories currently installed.) Preparing to replace virtualbox-4.2 4.2.4-81684~Ubuntu~quantal (using virtualbox-4.2_4.2.4-81684~Ubuntu~quantal_i386.deb) ... Unpacking replacement virtualbox-4.2 ... dpkg: dependency problems prevent configuration of virtualbox-4.2: virtualbox-4.2 depends on libc6 (>= 2.15); however: Version of libc6 on system is 2.13-20ubuntu5. virtualbox-4.2 depends on libqtcore4 (>= 4:4.8.0); however: Version of libqtcore4 on system is 4:4.7.4-0ubuntu8.1. virtualbox-4.2 depends on libqtgui4 (>= 4:4.8.0); however: Version of libqtgui4 on system is 4:4.7.4-0ubuntu8.1. dpkg: error processing virtualbox-4.2 (--install): dependency problems - leaving unconfigured Processing triggers for ureadahead ... Processing triggers for shared-mime-info ... How to solve it?