Error while doing the tutorial Making your first game

Phaser 3
1 
var platforms;

function create ()
{
    this.add.image(400, 300, 'sky');

    platforms = this.physics.add.staticGroup();

    platforms.create(400, 568, 'ground').setScale(2).refreshBody();

    platforms.create(600, 400, 'ground');
    platforms.create(50, 250, 'ground');
    platforms.create(750, 220, 'ground');
}

part1.html:44 Uncaught TypeError: Cannot read properties of undefined (reading ‘add’)
at Scene.create (part1.html:44:34)
at SceneManager.create (phaser.js:46843:26)
at SceneManager.loadComplete (phaser.js:46737:14)
at LoaderPlugin.emit (phaser.js:2011:35)
at LoaderPlugin.loadComplete (phaser.js:89330:14)
at LoaderPlugin.fileProcessComplete (phaser.js:89289:18)
at SpriteSheetFile.onProcessComplete (phaser.js:4068:21)
at data.onload (phaser.js:7389:19)

Can u help ?

2

It’s saying this.physics is undefined.

Add Arcade Physics to the game config.

3

How do I add Arcade Physics to the game config ?

4

See “Here is the revised game config” in link.