当我运行apt-get upgrade命令时，我收到此错误：
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
libvlc5 : Depends: libvlccore9 (>= 4.0.0~rc1~~git20180305+r74659+127~ubuntu16.04.1) but it is not installed
vlc : Depends: vlc-bin (= 4.0.0~rc1~~git20180210+r74136+127~ubuntu16.04.1) but it is not installed
Depends: vlc-plugin-base (= 4.0.0~rc1~~git20180210+r74136+127~ubuntu16.04.1) but it is not installed
Depends: vlc-plugin-qt (= 4.0.0~rc1~~git20180210+r74136+127~ubuntu16.04.1) but it is not installed
Depends: vlc-plugin-video-output (= 4.0.0~rc1~~git20180210+r74136+127~ubuntu16.04.1) but it is not …