Phaser 3, loader plugin not load assets in pack.json file - phaser-framework

Question

I have a json file for load assets generated with phaser editor.
i have a file boot.js for load a image for make load bar, and preloasder.js for load other assets file.
in the browser console does not appears some kind of error, but the image isn't load.
boot.js
runner.Boot.prototype = {
preload: function() {
this.load.pack('boot', 'assets/pack.json'); //this not work
//this.load.image('logo','assets/img/logo.png');//this work
resize();
},
[...]
update: function(){
this.scene.start('Preloader');
}
in file preloader.js
this.preloadLogo = this.add.sprite(0, 0, 'logo');
but the key 'logo' is not load.
the file content in pack.json has not been loaded.
the content of pack.json
{
"boot": [{
"type": "image",
"key": "logo",
"url": "assets/img/logo.png",
"overwrite": false
}],
"preloader": [
{
"type": "spritesheet",
"key": "coin",
"url": "assets/img/coin.png",
"frameWidth": 20,
"frameHeight": 20,
"frameMax": -1,
"margin": 0,
"spacing": 0
},
{
"type": "spritesheet",
"key": "fire",
"url": "assets/img/fire.png",
"frameWidth": 40,
"frameHeight": 70,
"frameMax": -1,
"margin": 0,
"spacing": 0
},
{
"type": "spritesheet",
"key": "gattoboy",
"url": "assets/img/gattoboy.png",
"frameWidth": 64,
"frameHeight": 128,
"frameMax": -1,
"margin": 0,
"spacing": 0
},
{
"type": "spritesheet",
"key": "mountain",
"url": "assets/img/mountain.png",
"frameWidth": 512,
"frameHeight": 512,
"frameMax": -1,
"margin": 0,
"spacing": 0
},
{
"type": "image",
"key": "platform",
"url": "assets/img/platform.png",
"overwrite": false
},
{
"type": "image",
"key": "loader",
"url": "assets/img/loader.png",
"overwrite": false
},
{
"type": "image",
"key": "five",
"url": "assets/img/five.png",
"overwrite": false
},
{
"type": "image",
"key": "loader-frame",
"url": "assets/img/loader-frame.png",
"overwrite": false
},
{
"type": "image",
"key": "phaser",
"url": "assets/img/phaser.png",
"overwrite": false
}
],
"meta": {
"generated": "1576167834682",
"app": "Phaser Editor",
"url": "http://phasereditor.boniatillo.com",
"version": "1.0",
"copyright": "Arian Fornaris (c) 2015,2016"
}
}