How to add another field to Meteor.users Schema ? meteor es6

I try using aldeed:collection2, but i did not know how to run in meteor es6.
i try to import {Schema, SimpleSchema, attachSchema} from ‘meteor/aldeed:collection2’;

but Schema is undefined when i try like example on aldeed github.

AFAICT, collection2 doesn’t export anything, so you need to

import {SimpleSchema} from meteor/aldeed:simple-schema

which is implied by the collection2 package

Thank’s foryour reply, but when i use Schema from aldeed example
Schema = {};

Schema.UserCountry = new SimpleSchema({
    name: {
        type: String
    },
    code: {
        type: String,
        regEx: /^[A-Z]{2}$/
    }
});

Schema.UserProfile = new SimpleSchema({
    firstName: {
        type: String,
        optional: true
    },
    lastName: {
        type: String,
        optional: true
    },
    birthday: {
        type: Date,
        optional: true
    },
    gender: {
        type: String,
        allowedValues: ['Male', 'Female'],
        optional: true
    },
    organization : {
        type: String,
        optional: true
    },
    website: {
        type: String,
        regEx: SimpleSchema.RegEx.Url,
        optional: true
    },
    bio: {
        type: String,
        optional: true
    },
    country: {
        type: Schema.UserCountry,
        optional: true
    }
});

Schema.User = new SimpleSchema({
    username: {
        type: String,
        // For accounts-password, either emails or username is required, but not both. It is OK to make this
        // optional here because the accounts-password package does its own validation.
        // Third-party login packages may not require either. Adjust this schema as necessary for your usage.
        optional: true
    },
    emails: {
        type: Array,
        // For accounts-password, either emails or username is required, but not both. It is OK to make this
        // optional here because the accounts-password package does its own validation.
        // Third-party login packages may not require either. Adjust this schema as necessary for your usage.
        optional: true
    },
    "emails.$": {
        type: Object
    },
    "emails.$.address": {
        type: String,
        regEx: SimpleSchema.RegEx.Email
    },
    "emails.$.verified": {
        type: Boolean
    },
    // Use this registered_emails field if you are using splendido:meteor-accounts-emails-field / splendido:meteor-accounts-meld
    registered_emails: {
        type: [Object],
        optional: true,
        blackbox: true
    },
    createdAt: {
        type: Date
    },
    profile: {
        type: Schema.UserProfile,
        optional: true
    },
    // Make sure this services field is in your schema if you're using any of the accounts packages
    services: {
        type: Object,
        optional: true,
        blackbox: true
    },
    // Add `roles` to your schema if you use the meteor-roles package.
    // Option 1: Object type
    // If you specify that type as Object, you must also specify the
    // `Roles.GLOBAL_GROUP` group whenever you add a user to a role.
    // Example:
    // Roles.addUsersToRoles(userId, ["admin"], Roles.GLOBAL_GROUP);
    // You can't mix and match adding with and without a group since
    // you will fail validation in some cases.
    roles: {
        type: Object,
        optional: true,
        blackbox: true
    },
    // Option 2: [String] type
    // If you are sure you will never need to use role groups, then
    // you can specify [String] as the type
    roles: {
        type: [String],
        optional: true
    },
    // In order to avoid an 'Exception in setInterval callback' from Meteor
    heartbeat: {
        type: Date,
        optional: true
    }
});

Meteor.users.attachSchema(Schema.User);

the services fields not working, please give me the correct Schema for Services,

Are you getting any errors?

actually there is no error if I only use accounts-password, but I use accounts-passwords and sewdn:facebook-connect to create an account connect to facebook not sign in with Faecbook.