it works for me ,thanks!!! changed the ubuntu software server from "Download from: Server for China" to "Download from:Main Server" ......
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/705988 Title: [master] Untrusted packages can not be installed -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
