Reference Error: - Box2d is not define

Hi,
I have developed a demo project for box2d on web i managed to developed it, But when I am deploying for iOS Device It is showing error box2d is not define. Help me to find solution and I haven’t found any jsb script for supporting box2d.

Thanks in advance

Hi,
I have developed a demo project for box2d on web i
managed to developed it, But when I am deploying for iOS Device It is
showing error box2d is not define. Help me to find solution and I
haven’t found any jsb script for supporting box2d.

Thanks in advance