我正在使用 Xubuntu 14.04。
执行完一个操作（没有错误）后apt-get update，APT 想要升级一个软件包，同时想要删除它：
$ apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following package was automatically installed and is no longer required:
libsystemd-journal0
Use 'apt-get autoremove' to remove it.
The following NEW packages will be installed:
libsystemd-journal0
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 49,9 kB of archives.
After this operation, 176 kB of additional disk space will be used.
Do you want to continue? [Y/n]
如果我删除该包（手动或使用apt-get autoremove），然后更新和升级，结果是相同的。
这似乎是一种循环，从几天前开始，每次我更新和升级时，症状就会重复出现。
我该如何解决？