无法在Ubuntu 19.04上安装Posgresql

Question

键入sudo apt-get install postgresql-11会出现错误：

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:
 postgresql-11 : Depends: postgresql-client-11
                 Depends: libicu55 (>= 55.1-1~) but it is not installable
                 Depends: libpq5 (>= 9.3~) but it is not going to be installed
                 Depends: libssl1.0.0 (>= 1.0.2~beta3) but it is not installable
                 Recommends: sysstat but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

我如何解决这个错误，并最终在我的ubuntu上安装Postgres？

Answer 1

要解决未满足的依赖项错误，只需添加最新的PostgreSQL apt存储库

$ sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
$ wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | sudo apt-key add -

然后只需触发更新命令

$ sudo apt-get update

在此之后，请安装postgresql-11

$ sudo apt-get install postgresql-11

Answer 2

sudo apt-get update
sudo apt-get install postgresql postgresql-contrib

试着运行这个命令，让我知道你看到了什么。显然postgres需要一些你还没有安装的包