当我安装 pgAdmin 时发生错误

如何解决当我安装 pgAdmin 时发生错误

我按照 https://linuxhint.com/best_gui_clients_postgresql_ubuntu/ 中的安装指南进行操作 使用以下命令

$ wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc |
sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/
`lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
$ sudo apt-get update
$ sudo apt-get install pgadmin4 pgadmin4-apache2 -y

第一个 commned 工作正常，但其他人抛出错误

E: Malformed entry 1 in list file /etc/apt/sources.list.d/pgdg.list (Suite)
E: The list of sources Could not be read.