我正在尝试在 Ubuntu 18.04 上安装 postgresql 9.4（由于 BDR 支持），并遵循此构建教程。
但是当我为 postgres 安装一些依赖项时，它的错误
root@ubuntu:/home/ubuntu# sudo apt-get build-dep postgresql-9.4
Reading package lists... Done
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 …postgresql ×1