Working with Groups. Hard to make sense of this error.

[kriket]

I am making platforms and assigning them to a group. 

 

 create: function() {    this.playerCollisionGroup = this.game.physics.p2.createCollisionGroup();    this.stationaryCollisionGroup = this.game.physics.p2.createCollisionGroup();            //  PLATFORMS    this.stationary = this.game.add.group();    this.stationary.enableBody = true;    this.stationary.createMultiple(125, 'climb');    this.stationary.physicsBodyType = Phaser.Physics.P2JS;    for(var i = 0; i < this.stationary.children.length; i++){            this.stationary.children[i].body.setCollisionGroup(this.stationaryCollisionGroup);            this.stationary.children[i].body.collides(this.playerCollisionGroup);    }}

But this gives me the error:

Uncaught TypeError: this.stationary.children[i].body.setCollisionGroup is not a function

 

I thought this would work. Can anyone help me find out why this is not working?

[rich]

You should set the physicsBodyType before calling createMultiple, otherwise they'll get an arcade Physics body instead.