template is not a function - EmberJs/ROR Application

I'm getting this error when loading the app via browser. Not sure what's wrong.

ember:7062 Uncaught TypeError: template is not a function
    at renderLegacyTemplate (ember:7062)
    at renderView (ember:7026)
    at renderView (ember:33679)
    at Class.render (ember:33702)
    at EmberRenderer_createElement [as createElement] (ember:35727)
    at EmberRenderer.Renderer_renderTree [as renderTree] (ember:7699)
    at EmberRenderer.scheduledRenderTree (ember:7774)
    at invoke (ember:879)
    at Queue.flush (ember:944)
    at DeferredActionQueues.flush (ember:749)