Cannot create a body

[rayzchen]

I downloaded the cp.min.js file, then tried to create a body. Then I get an error Uncaught TypeError: this.setMass is not a function. I use cp.js and the same error happens. I delete all other libraries that I'm using, and still it doesn't work. To reproduce:

var space = new cp.Space();
var mass = 100;
var radius = 25;
var moment = cp.momentForCircle(mass, 20, radius, cp.vzero);
var body = cp.Body(mass, moment);

I am using Chrome.