我一直在尝试使用 Linux 服务器映像设置Nextcloud和MariaDB,但当我想要完成 Nextcloud 的首次运行向导时遇到了障碍:

即向导给我的第一次Error while trying to create admin user: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory。
这是从哪里来的以及如何解决这个问题?
我正在使用Amahi 11并已从存储库安装了 docker。码头工人版本:
Client:
Version: 18.09.0
API version: 1.39
Go version: go1.10.4
Git commit: 4d60db4
Built: Wed Nov 7 00:48:52 2018
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 18.09.0
API version: 1.39 (minimum version …Run Code Online (Sandbox Code Playgroud)