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 unmet dependencies:
libpq-dev : Depends: libkrb5-dev but it is not going to be installed
Depends: comerr-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
答案1
您可以尝试从源代码安装它。对于 libpq-dev，您必须安装 PostgreSQL
该链接向您展示如何安装：
https://www.postgresql.org/docs/9.6/static/installation.html