The "dpkg --configure -a" is asked by the system when a previous update/upgrade process have not completely performed good, and it must run with "root" privileged administrative user. Using the "sudo" command we can do a command as "root" user, and "dpkg --configure -a" need be run from root user. After the "dpkg --configure -a" command i add all the usual commands (see below) you can run to be sure your system became fully upgraded.
Typing the commands as sudo the system will ask you for a password, please give your user password when requested, you don't see nothing when you type it, then press enter. So please: Open a Terminal from the menu Applications → Accessories → Terminal and type: sudo dpkg --configure -a sudo apt-get -f install sudo apt-get --fix-missing install sudo apt-get clean sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade sudo apt-get clean sudo apt-get autoremove Thank you -- _cache->open() failed, please report https://bugs.launchpad.net/bugs/124373 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs