Cannot read property 'extend' of undefined

[FellGill]

Describe the issue

I can not launch the bot because I have an error that appears in the console:

module.exports = Structures.extend('Guild', Guild => {
                            ^
TypeError: Cannot read property 'extend' of undefined

Code or steps to reproduce

const { Client } = require('klasa');
new Client({
    clientOptions: {
        fetchAllMembers: false
    },
    prefix: '+',
    cmdEditing: true,
    typing: true,
    readyMessage: (client) => `${client.user.tag}, Ready to serve ${client.guilds.size} guilds and ${client.users.size} users`
}).login('bot token');

Further details

• discord.js version: ^11.5.1
• node.js version: v10.15.3
• Klasa version: dirigeants/klasa

[FellGill]

Ok, i use github:discordjs/discord.js#master and is good