在授予用户权限时，我在 ubuntu 16.04 中遇到了 mysql 5.7 的问题，所以我想再次重新安装它，但是当我键入删除 mysql 的命令时，我收到以下消息
nato@nato-Compaq-Presario-CQ61-Notebook-PC:~$ sudo apt-get remove --purge mysql-server mysql-client mysql-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have …