TypeError：无法读取Phaser.js Arcade Physics中未定义的属性“ enable”

Question

我正在尝试制作一个简单的乒乓球游戏，我想在球上启用街机物理。相反，它显示TypeError：无法读取未定义的属性“ enable”。这是代码中出现错误的部分。

function create() {
  gameState.bar1 = this.add.rectangle(0, 250, 25, 100, 0x37c3be)
  gameState.bar2 = this.add.rectangle(540, 250, 25, 100, 0x37c3be)
  gameState.ball = this.add.circle(270, 250, 5, 0x37c3be)
  this.physics.arcade.enable(gameState.ball)
  gameState.cursors = this.input.keyboard.createCursorKeys()

这是配置代码

const config = {
	type: Phaser.AUTO,
	width: 540,
	height: 500,
	backgroundColor: "#5f2a55",
  physics: {
    default: 'arcade',
    arcade: {
      gravity: { y: 200 },
      enableBody: true,
    }
  },
  scene: {
    create,
    update,
	}
  
};