PLUGIN.YML COMMAND ALIASES NOT WORKING

I have been having issues always using aliases when registering commands in the plugin.yml, I've never gotten it to work, when I register the command as an alias and I test it out in-game, it is registered but when you execute the command it just has no output. Please help, here is my plugin.yml.

PHP:

name: nKits
version: 1.0.0
description:
author: Genex
main: us.NovaKits.Main
 
commands:
cc:
  description: Clear the chat.
  aliases: [clearchat]
  permission: novakits.cc

I forgot to add the description, but with or without it it still does not work.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Might be related to indentation:

Since you do not have multiple aliases, try it without the brackets.

Code:

name: nKits
version: 1.0.0
description: Kits
author: Genex
website: http://dev.bukkit.org/bukkit-plugins/NovaKit
main: us.NovaKits.Main
 
commands:
  cc:
    description: Clear the chat.
    aliases: [clearchat]
    permission: novakits.cc
    usage: /<command>