"hexo server" command not found after using custom plugin

[ssoor]

Hexo-server is now a plugin and enabled by default, but the hexo-server plugin will fail when the user is configured with a custom plugin.

The solution is to add hexo-server to the list of plugins.

# Extensions
## Plugins: https://hexo.io/plugins/
plugins:
-hexo-server
-hexo-custom-plugin ...

But this situation may not be friendly to novices. Suggestions are given in the documentation.

[jiangtj]

the player

Which player？

[ssoor]

the player

Which player？

Sorry, here should be the user

[stevenjoezhang]

You do not need to specify plugins:, Hexo will automatically load all the Hexo plugins in package.json.
plugins: option is not designed for hexo-custom-plugin like this

#1670
f6407dc

[stevenjoezhang]

Here is a discussion about it hexojs/site#262