来自/var/log/dist-upgrade/apt.log：
Starting pkgProblemResolver with broken count: 1
Starting 2 pkgProblemResolver with broken count: 1
Investigating (0) libgles1-mesa [ amd64 ] < 12.0.6-0ubuntu0.16.04.1 > ( libs )
Broken libgles1-mesa:amd64 Depends on libglapi-mesa [ amd64 ] < 12.0.6-0ubuntu0.16.04.1 -> 17.0.7-0ubuntu0.16.04.1 > ( libs ) (= 12.0.6-0ubuntu0.16 .04.1)
Considering libglapi-mesa:amd64 64 as a solution to libgles1-mesa:amd64 2
Removing libgles1-mesa:amd64 rather than change libglapi-mesa:amd64
Investigating (0) vlc [ amd64 ] < 2.2.2+git20170721+r59033+56~ubuntu16.04.1 > ( video )
Broken vlc:amd64 Depends on libgles1-mesa [ …