libgtk2.0-0:i386 : 依赖: libcups2:i386 (>= 1.6.2) 但是它不会

Question

在我这个新手看来，这个问题应该很容易解决。

请指教

    libgtk2.0-0:i386 : Depends: libcups2:i386 (>= 1.6.2) but it is not going to be installed
     libpulse0:i386 : Depends: libdbus-1-3:i386 (>= 1.9.14) but it is not going to be installed
                      Depends: libsystemd0:i386 but it is not going to be installed
    E: Unable to correct problems, you have held broken packages.

请求的输出apt-cache policy libgtk2.0-0:i386 libcups2:i386 libpulse0:i386 libdbus-1-3:i386 libsystemd0:i386：

libgtk2.0-0:i386:
  Installed: (none)
  Candidate: 2.24.32-3ubuntu1
  Version table:
     2.24.32-3ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic/main i386 Packages
libcups2:i386:
  Installed: (none)
  Candidate: 2.2.8-5ubuntu1.2
  Version table:
     2.2.8-5ubuntu1.2 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic-proposed/main i386 Packages
     2.2.8-5ubuntu1 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic/main i386 Packages
libpulse0:i386:
  Installed: (none)
  Candidate: 1:12.2-0ubuntu4
  Version table:
     1:12.2-0ubuntu4 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic/main i386 Packages
libdbus-1-3:i386:
  Installed: (none)
  Candidate: 1.12.10-1ubuntu2
  Version table:
     1.12.10-1ubuntu2 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic/main i386 Packages
libsystemd0:i386:
  Installed: (none)
  Candidate: 239-7ubuntu10.5
  Version table:
     239-7ubuntu10.5 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic-proposed/main i386 Packages
     239-7ubuntu10 500
        500 http://us.archive.ubuntu.com/ubuntu cosmic/main i386 Packages

我相信我已经纠正了这个问题。