[Bug 1810673] Re: Cannot upgrade 16.04 to 18.04

*** This bug is a duplicate of bug 1611737 *** https://bugs.launchpad.net/bugs/1611737 Solved after uninstalling ROS-kinetic packages. ** This bug has been marked a duplicate of bug 1611737 Can't upgrade from a release if ros packages are installed from ROS servers -- You received this

[Bug 1810673] [NEW] Cannot upgrade 16.04 to 18.04

*** This bug is a duplicate of bug 1611737 *** https://bugs.launchpad.net/bugs/1611737 Public bug reported: 1. Release of Ubuntu Ubuntu 16.04.5 LTS 2. apt policy ubuntu-release-upgrader-core Installed: 1:16.04.26 Candidate: 1:18.04.29 Version table: 1:18.04.29 500 500 htt