问题排查

1. 尝试查看dpkg.log，重新安装异常的包，试了没用
2. 尝试清除apt缓存

   sudo apt clean
   sudo rm -rf /var/lib/apt/lists
   sudo apt update
   

3. 看到报错信息Failed to activate service 'org.freedesktop.PackageKit': timed out(service_start_timeout=25000ms)
4. 查看packagekit状态

   sudo systemctl status packagekit
   // 看到是因为找不到libgstreamer1.0
   sudo aptitude reinstall libgstreamer1.0-0
   sudo reboot
   

5. 问题解决