Error initializing p2 Physics body

[valueerror]

i try to add a player to my phaser-test-game like this to make it live in a p2 world and not the default arcade world.  (.ARCADE or .NINJA works as expected)

game.physics.startSystem(Phaser.Physics.P2);

player = game.add.sprite(250, game.world.height - 250, 'mario'); game.physics.enable(player, Phaser.Physics.P2 );

but then i get this: (attachment)

[rich]

Sorry yes I forgot to update that - will do so now!