Please can you provide your /etc/apt/sources.list as well as any files within the /etc/apt/sources.list.d directory. Also can you provide the output of:
$ sudo apt-get check $ sudo apt-get update -- i can not use update manager or add or remove applications https://bugs.launchpad.net/bugs/479801 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
