How I can add roles to users when sign up?

Hi guys…

how I can add roles to users when sign up? I’am use alanning package

the code

Template.signUp.events({
  "submit form": function(event){
    event.preventDefault();
    var email = $('[name=email]').val();
    var password = $('[name=password]').val();
    var roles = ['visitor'];
    var id;
    id = Accounts.createUser({
      email: email,
      password: password,
    });
      Roles.addUsersToRoles(id, roles);
  }
  });

but when a user sign alanning package doesn’t working?

it’s actually safer to do it in a more general purpose way: http://docs.meteor.com/#/full/accounts_oncreateuser