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Cannot read property 'y' of undefined


lucasg07
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Hi,

I'm really new to Phaser, I'm trying to get the y value of an element from a sprite in an array. But I'm getting the error cannot read property 'y' of undefined. What am I doing wrong? Thanks for the help.

this.platforms.children.entries.forEach(elem => { //this.platform is a staticgroup with 10 sprites
      console.log(elem); //returns arcadesprite
      this.platformYMin = Math.min(this.platformYMin, elem.y);
      
      if (elem.y > this.camera.y + this.game.height) {
        elem.kill();
        this.platforms.create(
          Phaser.Math.Between(50, 450),
          this.platformYMin - 100,
          'tile'
        );
      }
    });
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