CSSTransitionGroup __reactAutoBindMap Error

[jonsharratt]

anim = React.addons.CSSTransitionGroup

  render: ->
    layout do
      anim transition-name: 'fade',
        d.img do
          src: 'image_url_here'

When attempting to use a React.addons.CSSTransitionGroup I appear to be getting a Uncaught TypeError: Cannot read property '__reactAutoBindMap' of undefined error.