Scale Manager: not working?

I can’t seem to get any of the Scale Manager examples to work. I am copying the exact code from the examples posted for resize or fit, or any of the other that use scale manager.
all the time,throws the same error:
" cannot read property ‘FIT’ of undefined at config.js: 5 which is the line mode: Phaser.Scale.FIT,

if I change to RESIZE it gives the same error.
What am I doing wrong?
var config = {
type: Phaser.AUTO,
backgroundColor: ‘#2dab2d’,
scale: {
mode: Phaser.Scale.RESIZE,
parent: ‘phaser-example’,
width: ‘100%’,
height: ‘100%’,
min: {
width: 800,
height: 600
},
max: {
width: 1600,
height: 1200
}
},
scene: {
preload: preload,
create: create
}
};

var game = new Phaser.Game(config);

function preload ()
{
this.load.image(‘rain’, ‘assets/pics/thalion-rain.png’);
this.load.image(‘logo’, ‘assets/sprites/phaser3-logo-x2.png’);
}

function create ()
{
this.bg = this.add.tileSprite(0, 0, this.scale.width, this.scale.height, ‘rain’).setOrigin(0);
this.logo = this.add.sprite(this.scale.width / 2, this.scale.height / 2, ‘logo’);

this.scale.on('resize', resize, this);

}

function resize (gameSize, baseSize, displaySize, resolution)
{
var width = gameSize.width;
var height = gameSize.height;

this.cameras.resize(width, height);

this.bg.setSize(width, height);
this.logo.setPosition(width / 2, height / 2);

}

If you dont use the newest version of phaser3.16 or higher you still have the same error ,try to change phaser is version in the code example!

Thank you for replying.Brilliant! I had made the mistake of downloading it off Github which I guess has not been updated for a while.