[Bug 1789413] [NEW] i can not upgrade to ubuntu 18

Public bug reported: neampoima@3na:~$ apt-get upgrade E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root? ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubuntu-release-upgrader-core 1:1

[Bug 1789412] [NEW] i can not upgrade to ubuntu 18

Public bug reported: neampoima@3na:~$ apt-get upgrade E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root? ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubuntu-release-upgrader-core 1:1